Using the Calexotics Boundless Wrist Cuffs is easy. First, adjust the buckle straps to fit your wrists comfortably. You can either bind the cuffs together or use the detachable universal clasps to attach them to a surface of your choice. When using, make sure not to over - tighten the cuffs to avoid discomfort or injury. After each use, clean the cuffs with a mild soap and a soft cloth. Store them in a cool, dry place away from direct sunlight to maintain their quality. These cuffs are built to last, but always check for any signs of wear and tear before each use.