Put your submissive lover in this positioning harness to spread their legs open and keep their wrists trapped behind their back. Four points of adjustability allow you to customize the chest harness to your partnerft.s size. The ankle and wrist cuffs are also fully adjustable with the buckles. This comfortable positioning aid can be used during foreplay or sex.Back strap adjusts from 5 to 10 in. Wrist cuffs adjust from 6 to 10 in. circumference. Thigh cuffs adjust from 13 to 23 in. Chest strap adjusts up to 45 in.