The Vac-U-Lock Dual Density Extreme Set offers deeper penetration and a more intense feeling of fullness than any other complete Vac-U-Lock set. It includes three extra-large attachments made of Dual-Density Ultraskyn, a complete harness with removable O-rings and plugs, as well as a bottle of Mood water-based lubricant. These dual-density attachments warm to body temperature during use and feature a soft, smooth exterior with a firm inner core that replicates the sensation of a real erect penis.

The attachments can be used with the harness, the included Vac-U-Lock suction cup and Knuckle-Up accessories, as well as any other accessories or harnesses from this line. The Vac-U-Lock Dual Density Extreme Set also includes Doc Johnson Natural Toy Cleaner and Ultraskyn Refresh Powder to properly care for and maintain the hygiene of your dual-layer Ultraskyn accessories. Each product in the patented Vac-U-Lock system is designed for you to easily create any strap-on or toy you desire, and it’s simple to attach the accessories of your choice.

The Unisex Supreme Harness is adjustable up to 69 O-ring compatible (including 4 ring sizes). It includes three Dual Density Ultraskyn attachments: a 15.5-inch realistic dong, a 12-inch shaft, and a 10.5-inch slim shaft. Additionally, it comes with a plug with a pad and snaps, as well as an anal plug with a strong suction base.