Made of fine quality material practical easy to install and use wide application has a long service life. Features: Made of fine quality material easy to install and operate. With the use of various types of belt drive for efficient grinding. Suitable for all kinds of wood furniture metal and non-metal grinding and polishing. Widely used in metallurgy machinery shipbuilding industry leather wood building materials textile and other industries. Specifications: Material: alumina Quantity: 10pcs Grit: 60# 80# 120# 180# 240# 320# 400# 600# 800# 1000# Size: 15 * 330mm / 0.6 * 13.0in 25 * 330mm / 1.0 * 13.0in (optional) Package size: 200 * 50 * 30mm / 7.9 * 2.0 * 1.2in Package weight: 15 * 330mm: 50g / 1.8ounce 25 * 330mm: 65g / 2.3ounce Package list: 10 * Sanding Belt