Conveen Security+ Fabric Leg Bag Straps are made from a soft elasticized material. The straps have silicone beads to keep them from slipping or shifting. The velcro closure also provides an adjustable, secure fit. They are reusable and washable. Each package includes one small strap and one large strap. Small strap size is 1" W x 23" L, large strap size is 1 1/4" W x 23" L.