FUN FACTORY B Balls Duo Move slowly. Pick up the pace. Let every shift create its own response. The FUN FACTORY B Balls Duo transforms natural body movement into deep, rolling sensation without vibration, charging or complicated controls. Each rounded chamber contains a weighted inner ball that moves independently as you walk, change position or build momentum, creating a subtle internal pulse that becomes more noticeable with motion. Its graduated two-ball profile allows the body to adjust progressively. The smaller rounded section introduces the shape gently, while the larger second chamber creates a fuller sense of pressure. A flexible connection between the balls helps the design respond comfortably as your position changes. The smooth tapered tip supports easier insertion, while the broad, curved base remains outside the body for secure retrieval and safer positioning. Its slim base is designed to sit close against the body, making B Balls Duo suitable for solo exploration, partnered play or discreet movement-responsive wear. Completely motor-free and battery-free, this weighted design stays silent while allowing you to control the intensity through your own rhythm. Slower movements create a softer roll, while faster changes in pace produce a stronger internal surge. Waterproof and finished in smooth, non-porous materials, FUN FACTORY B Balls Duo is simple to wash and ready whenever you are. It is a refined choice for those seeking fuller pressure, wearable sensation and an experience that moves entirely with the body. Use with a generous amount of high-quality water-based lubricant for a smoother, more comfortable glide. FUN FACTORY B Balls Duo Features Weighted double-ball plug design Two freely moving internal weights Creates rolling and shifting sensations Responds naturally to body movement Sensation becomes more pronounced as movement increases Motor-free and completely silent No vibration settings or controls required Graduated two-ball silhouette Smaller first ball for a more gradual introduction Larger second ball for fuller internal pressure Smooth tapered tip for easier insertion Flexible connector between both chambers Broad curved base for secure positioning Base remains accessible for safer removal Low-profile design sits close to the body Suitable for solo or partnered exploration Designed for movement-responsive wear Waterproof construction Smooth, non-porous surface Battery-free design No charging cable required FUN FACTORY B Balls Duo Specifications Design: Graduated two-ball silhouette Sensation Type: Rolling, shifting and movement-responsive pressure Number of Internal Weights: 2 Movement Source: Natural body movement Material: Body-safe silicone and weighted internal components — exact composition TBC Surface Finish: Smooth, non-porous finish Tip Shape: Rounded and tapered Connector: Flexible Base Type: Broad curved safety base Total Length: Approximately 12.6 cm Small Ball Diameter: Approximately 3.2 cm Large Ball Diameter: Approximately 3.6 cm Product Weight: Approximately 91 g Waterproof Rating: IPX7
