Play the way you want to play. This Vac-U-Lock attachment made of smooth silicone features an abstract phallic shape with an exciting, contoured head and can be used with any Vac-U-Lock-compatible strap or accessory. The smooth silicone attachment is also compatible with O-ring harnesses. Vac-U-Lock is the world's first and only patented pleasure system that revolutionizes strap-on play and offers endless possibilities to mix and match within your collection to create the perfect toy. Silicone attachment with stimulating shaft, compatible with any Vac-U-Lock accessory, O-ring harness compatible, phthalate-free, body-safe.