Description This 2cm wide heavy duty woven strap with large Round-ring can secure the molded cup with non-slip sole directly to almost any chair leg. It's adjustable from 16" to 28", which can accommodate most players. It will protect your floor from scratches and make sure your cello doesn't during a practice or performance. Features - Color: Shown in the pictures.- Material: Plastic.- Size: 55.00X8.00X1.40cm/ 21.61X3.14X0.55inch .- for durable and long-lasting use.- Adjustable from 40cm to 70cm to accommodate most players. Folds compactly for storage.- Hold cello/double bass stably. Help prevent cello from slipping or damaging the floor.Packing list: 1 * Cello Endpin Anchor Non-slip Endpin Stopper Holder Stand Cello Antiskid Device