850W HIGH SPEED MOTOR:All copper motor,high power,high torque,fast speed,Full copper coil provides more stable power ROTATABLE BUTTON:To adjust the tension of the blade.To loosen it a little bit when the item getting hot.Adjust the tightness according to the wool, and you can also adjust it according to personal habits QUALITY BLADE:All the blades are made of high-strength carbon steel, refined, wear-resistant, durable, sharp, and have been specially treated at the end, so it is not easy to hurt the sheep! BLADE COVER DESIGN:New design, the blade cover not only protects the blade, but also prevents children from touching it HEAVY DUTY QUALITY: High quality motor provides for long lifespan with high heat resistance, low noise and vibration. Made with durable material and performs heavy duty while working on a farm