Taking hands-on play to the next level, this feisty Knuckle Up accessory will delight and amaze you with its novelty, functionality, and its undeniable ‘cool factor’. The Knuckle Up accessory is compatible with the entire selection of Vac-U-Lock attachments, with its one-size-fits-all knuckle rings sitting below a standard Vac-U-Lock plug. You won’t believe how versatile this toy is! It’s perfect for both masturbation and playing with a partner! What are you waiting for?!
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