Ben Wa balls

Before buying Ben Wa balls, understanding how they work mechanically helps you choose the right weight and avoid common mistakes.

Ben Wa balls: how do they work?

Ben Wa balls are weighted spheres inserted into the vagina, designed to engage the pelvic floor muscles (pubococcygeus muscles) through a reflex contraction used to hold them in place. With every movement of the body, the internal weight oscillates, forcing the muscles to contract to retain the ball; it is the passive version of a Kegel exercise.

Dr. Arnold Kegel formalized these exercises in 1948 to treat stress urinary incontinence; since then, studies have shown that regular practice over 8 weeks (2 to 3 sessions of 20 minutes per week) significantly improves perineal tone. The balls come in solo versions (one sphere, for beginners) or duo (two connected spheres, higher load). The weight generally varies from 25g to 100g: always start with the lightest one before progressing. Non-porous medical-grade silicone is the gold standard for hygiene, as it is sterilizable and hypoallergenic. Use with a water-based lubricant for insertion.

The different types of Ben Wa balls

• Light solo ball (25-35 g): a single sphere, ideal for beginners or after a recent childbirth; the muscle should not be overworked.
• Classic duo (2 balls, 50-70 g): the most common format, like Fun Factory SmartBalls, with a silicone retrieval cord.
• Progressive kit (3 weights): several balls of increasing weights sold together for progression over several weeks without having to buy new ones.
• Vibrating balls: incorporate a stimulation motor, for mixed use—rehabilitation and pleasure—less recommended for strictly medical rehabilitation.

How to choose the right Ben Wa balls

• According to current tone: if you have never practiced, start with less than 35g and a single sphere; using a ball that is too heavy right away can tire the muscle rather than strengthen it.
• According to material: absolutely prioritize medical-grade silicone or certified ABS; avoid porous TPE, which cannot be sterilized and accumulates bacteria.
• According to usage: for perineal rehabilitation, choose a progressive kit with an included exercise guide; for pleasure, a vibrating ball or a classic duo.
• According to the cord: ensure the retrieval cord is made of silicone or sturdy nylon and is easy to grip; avoid cotton cords, which retain moisture.
• According to medical history: in cases of prolapse or pelvic surgery, consult a pelvic floor physical therapist before using the balls; some profiles require a specific protocol, which you can also find in our wellness selection.