Features: High quality rubber material, not easy to deformation, sturdy and durable to use. Light weight and small size, included 4pcs that enough for a long service need. Protect your floor from scratches, and also protect your cello endpin. Increase the friction and make sure your cello won't slip during a performance. It is important part of violin, perfect for professional violinist or violin lovers. Specification: Material: Rubber Color: Black Quantity: 4Pcs Whole Size: Approx. 2.5 x 1.5cm / 0.98 x 0.59inch Rubber Head Hole Diameter: Approx. 0.6cm / 0.24inch Weight: Approx. 13g Package Included: 1 x Set of 4Pcs Rubber Tip Note: Please allow slight deviation for the color and measurement. Thanks for your understanding. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.