The base is made of good material, non-slippery, enhances friction on the floor to prevent cello from slipping or damaging the floor. 2 adjusting holes greatly help you to choose the most comfortable position for playing, because sometimes you do not need to bend down to adjust the strap length for a comfortable position anymore. Features -Color: Black -Material: Plastic steel, nylon, metal -Size: About 60.00X6.50X1.50cm/23.58X2.55X0.59in -Note:Random style buckle -The production is made from finely processed material, which is noble and elegant. -Thicker material, good resistance. The specially treated non-slip cotton can effectively achieve the anti-slip effect. -2 adjustment holes, which can help you choose a most comfortable playing posture. -Enhances friction on the floor, prevent cello from slipping. Convenient and professional to use. -Thicker material, strong resistance, suitable for cello. Professional anti-skateboard for different plane design. Package list: 1 x anti-skid pad for cello