Features: brand new and high quality Material: Made of high quality stainless steel & rubber, stable, firm and durable. Easy to install: Directly replace the old or broken one. Application: Good performance, convenient and practical, suitable for home and professional use. Lightweight Size: Portable and small size, easy to store and carry, bring you convenience. Function: Polishing, deburring, cleaning and mixing are efficient, high-quality, time-saving, labor-saving and process-saving. Specifications: Material: Stainless Steel + Rubber Size: approx 150x25.4x25mm/5.91x1.00x0.98 inches Granularity: 80,150,400,1000,2000,3000 Diameter: 150mm/6" Aperture: 25.4mm/1.00'' Thickness: 25mm/0.98'' Package Includes: 1x Diamond Grinding Wheel note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the pic may not reflect the actual color of the item.