Kegel Balls Fun Factory SMARTBALLS DUO
$29.39
Kegel Balls Fun Factory SMARTBALLS DUO
- For vulvas
- Waterproof
- Silicone
Double silicone Kegel balls. Each ball has a weight inside that moves when you move, and you take them out by pulling the cord. Before you pick a colour, check the sizes: Purple and Black are 10 cm long, and Pistachio and Lilac are 16.8 and 17.5 cm.
Orders start at $70 — add more to check out.
Compatible lubricant: water-based. Silicone-based lubricants can damage the silicone of this product.
Your parcel arrives in a plain box and the sender does not mention Loviux
Fun Factory Smartballs DuoWeight inside, cord outside.
Two balls in a row, each with a weight that moves as you walk or move around. The tip tapers to make them easier to insert, and you take them out by pulling the cord.
- Two balls
- Silicone
- Fully waterproof
- 4 colours
The essentials
Fun Factory Smartballs Duo: what you need to know before you buy
Is it for you?
Who the Fun Factory Smartballs Duo are for, and who they aren't
It suits you if…
- You want double Kegel balls, with a weight inside each ball that moves with you.
- You're looking for balls to wear while you walk or do things around the house.
- You want to be able to use them in the bath, because they're fully waterproof (submersible).
Better look elsewhere if…
- You prefer something narrower. These are 3.6 to 3.8 cm wide; the B Swish Bfit Classic Flex has a 2.9 cm size.
- You want them lighter. The Pretty Love Hegel Ball weighs 40 g.
- You're looking for balls that vibrate and can be controlled remotely. Take a look at the CICI Beauty remote control balls.
- It's your first time using Kegel balls. Fun Factory suggests the Smartball Uno, with a single ball, for getting started, and presents the Duo, with two weights, as a next step for those who already have experience.
Size and measurements
Fun Factory Smartballs Duo sizes
Purple and Black are 10 cm (3.9 in) long, a little longer than a bank card, and 3.8 cm (1.5 in) wide. Pistachio is 16.8 cm (6.6 in) long, a little longer than a BIC Cristal pen, and 3.6 cm (1.4 in) in maximum diameter. Lilac is 17.5 cm (6.9 in) long, about the length of a medium banana, and 3.7 cm (1.5 in) in maximum diameter. In all colours the width is slightly under that of a ping-pong ball. Both balls go in and the cord stays outside, but the manufacturer doesn't publish the length of the part that goes in.
The Purple and Black measurements are those published by Fun Factory.
Length, to scale
Purple and Black 10 cm (3.9 in)
BIC Cristal pen about 15 cm (5.9 in)
Pistachio 16.8 cm (6.6 in)
Lilac 17.5 cm (6.9 in)
Medium banana about 18 cm (7.1 in)
Width, to scale
Two-euro coin2.6 cm (1 in)
Pistachio3.6 cm (1.4 in)
Lilac3.7 cm (1.5 in)
Purple and Black3.8 cm (1.5 in)
Ping-pong ball4 cm (1.6 in)
Step by step
How to use the Fun Factory Smartballs Duo
- Wash them before use with warm water and pH-neutral soap.
- Put a little water-based lubricant on the tip. A small amount is enough to make insertion easier.
- Insert them tip first, where it tapers. The cord stays outside.
- Wear them while you walk or do things around the house. The weight inside each ball moves with you.
- To take them out, pull the cord gently and without rushing.
Cleaning
Use warm water and pH-neutral soap, or a toy cleaner. Let them dry completely before storing them.
Our tips
- The first few times, wear them for a short while and build up gradually as feels comfortable.
- If you feel pain or discomfort, take them out.
- Store them clean and dry, away from other toys.
- If you share them, wash them between one person and the next.
In the box
What's in the box
- Fun Factory Smartballs Duo Kegel balls
- A short user guide (Pistachio and Lilac)
Specifications
Fun Factory Smartballs Duo technical specifications
- Brand
- Fun Factory
- Model
- Smartballs Duo
- Type
- Double Kegel balls
- Colours
- Purple, Black, Pistachio and Lilac
- Length
- 10 cm (Purple and Black) · 16.8 cm (Pistachio) · 17.5 cm (Lilac)
- Maximum width
- 3.8 cm (Purple and Black) · 3.6 cm (Pistachio, 3.2 to 3.6 cm (1.3 to 1.4 in)) · 3.7 cm (Lilac)
- Height (Purple and Black)
- 3.6 cm (1.4 in)
- Weight
- 73 g (Purple and Black) · 74 g (Pistachio) · 75 g (Lilac)
- Material
- Silicone; Purple and Black, silicone and ABS
- Water resistance
- Fully waterproof (submersible); Purple and Black, IPX7
- Lubricant
- Water-based
Measurements, weight and material of Purple and Black, according to Fun Factory.
Comparison
Fun Factory Smartballs Duo compared with other Kegel balls
 |
 |
 |
 |
|
|---|---|---|---|---|
| Length | 10 · 16.8 · 17.5 cm (3.9 · 6.6 · 6.9 in) | 15.3 cm (6 in) | 15.3 cm (6 in) | 7.8 · 9.3 cm (3.1 · 3.7 in) |
| Maximum width | 3.6 · 3.7 · 3.8 cm (1.4 · 1.5 · 1.5 in) | 3.8 cm (1.5 in) | 3.6 cm (1.4 in) | 2.9 · 3.6 cm (1.1 · 1.4 in) |
| Weight | 73 · 74 · 75 g | 40 g | 40 g | 28 · 38 g |
| Water | Fully waterproof (submersible) | Fully waterproof (submersible) | Fully waterproof (submersible) | Water-resistant, not submersible |
| Price | From $20.99 |
$48.99
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$48.99
View |
From $32.13
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Questions
Fun Factory Smartballs Duo: frequently asked questions
How big are the Fun Factory Smartballs Duo?
It depends on the colour. Purple and Black are 10 cm (3.9 in) long and 3.8 cm (1.5 in) wide; Pistachio is 16.8 cm (6.6 in) long and 3.6 cm (1.4 in) in maximum diameter, and Lilac is 17.5 cm (6.9 in) and 3.7 cm (1.5 in).
Are the Fun Factory Smartballs Duo fully waterproof (submersible)?
Yes. They can go under water, so they work in the shower or the bath. Purple and Black have IPX7 protection.
What lubricant works with the Fun Factory Smartballs Duo?
A water-based one. A little is enough to make insertion easier.
How do you clean the Fun Factory Smartballs Duo?
Use warm water and pH-neutral soap, or a toy cleaner. Let them dry completely before storing them.
How do you take out the Fun Factory Smartballs Duo?
Pull the cord, which stays outside. Do it gently and without rushing.
Do the Fun Factory Smartballs Duo come with instructions?
Yes, Pistachio and Lilac come with a short user guide. For Purple and Black, the manufacturer doesn't publish what comes in the box.
Are the Fun Factory Smartballs Duo suitable for beginners?
Fun Factory presents them for those who already have experience, because they have two weights and give stronger impulses. For getting started, it suggests the Smartball Uno, with a single ball.
Before publishing this product sheet we check that every figure is in its sources and that what it says holds up. Product sheets that do not pass this check are not published.
Product sheet updated on October 11, 2026
Questions & Answers
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- Some reviews were written in another of our stores and are shown machine-translated.
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