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?! Experience endless pleasurable possibilities with the most user-friendly sex toy system in the world.

• For Easy Handheld Use of Vac-U-Lock Attachments
• Distinctive Brass Knuckles Shape
• Powerful Non-Slip Grip
• Use with Any Vac-U-Lock Compatible Attachment