Description: Heel caps measurement: these heel caps are round shaped and they have 2 sizes,9 mm,10 mm Strong material: this set of heel tips is made of good quality, durable and wear-resisting Useful shoe replacement heels tips: heel tips make it comfortable for your sole of foot when you are walking, and the rough surface can prevent slipping thus much safer Avoid noise: these replacement dowels can help to reduce the noise made by your heel and the ground, so that it will not produce loudly sound when you are walking Application: Great for replacing the worn or lost heel plates,change shoe heel tips by yourself. Specification: Material: Plastic, Alloy Tap Diameter: 9mm Small Diameter of Metal Pin: 2.4mm Large Diameter of Metal Pin: 3mm Tap Diameter: 10mm Small Diameter of Metal Pin: 2.4mm Large Diameter of Metal Pin: 3mm Package Includes: 10 Pairs of High Heel Tips