Force your sub on his or her knees with the Frog Tie Restraints from the Strict collection. These faux leather leg cuffs make it impossible for the wearer to stand up straight. The cuffs are completely adjustable, so they always fit perfectly. They are also provided with strong metal rings that you can use to attach a bondage rope or chains to the cuffs. How are you going to use this exciting bondage set? The ankle cuffs are adjustable from 5 cm to 9 cm in diameter. The thigh cuffs are adjustable from 10 cm to 23 cm in diameter.