Features:_x000D_ 1. High rotation speed, good polishing performance, suitable for mirror polishing._x000D_ 2. Compressed air as the power, energy saving and environmental protection._x000D_ 3. Strong power and not stuck, smooth grinding process._x000D_ 4. Suitable for grinding and polishing of fine wood, stone, hardware, crafts, etc._x000D_ 5. High quality and practical, a perfect set of tools for polishing and grinding. _x000D_ _x000D_ Specification:_x000D_ Item Type: Pneumatic Sander_x000D_ Material: Aluminum Alloy + Steel + Iron _x000D_ Speed: 2000rpm_x000D_ Air Consumption: 3.1cfm_x000D_ Disc Size: 3inch_x000D_ Air Inlet: 1/4"_x000D_ Air Pressure: 90psi_x000D_ Main Axis Threads: M6 _x000D_ Item Size: 24 * 17 * 4.3cm / 9.4 * 6.7 * 1.7inch_x000D_ Package Weight: Approx. 890g_x000D_ _x000D_ Package List:_x000D_ 1 * Main Machine_x000D_ 1 * Grinding Disc_x000D_ 1 * Wool Grinding Disc _x000D_ 1 * White Sponge Grinding Disc _x000D_ 1 * Yellow Sponge Grinding Disc _x000D_ 1 * Inlet Interface_x000D_ 1 * Wrench_x000D_ _x000D_ Note:_x000D_ Please allow slight error due to manual measurement. Thanks for your understanding.