Knuckle Up Vac-U-Lock Accessory open-mouth Temperature-responsive toy that warms up

Temperature-responsive toy that warms up when in contact with your body heat for added pleasure and comfort

The luxurious texture of the UR3 is intended to mimic the elastic feeling of real skin

Excellent for internal and external stimulation

apply the optimum amount of pressure to enhance the experience further

Knuckle Up Vac-U-Lock Accessory open-mouth Temperature-responsive toy that warms upEnsuring an absolutely perfect grip on your favorite Vac U Lock dildo, plug or probe, the Knuckle Up is completely unique, extra user friendly, and a truly great addition to the Vac U Lock family. Taking the shape of classic brass knuckles, the firm ABS plastic grip fits through the fingers and provides a solid handle for ultra precise maneuvers once a compatible toy has been attached to the universal plug up top. Simply slide your penetrator of