Feature: Portable Design Installed special ball bearings for super high speed E-Type Motor Connection to your straight & Contra Angle Handpiece Great things come in small packages. Equipped with a high torque brush motor with speeds up to 35,000 rpm   Specifications: 1. Speed: 35,000 RPM Max. 2. Standard E-Type Connection 3. Light Weight: 200g 4. Strong Power and Durable. 5. Lowest Noise and Vibration Design 6. Suit for Most brand low speed contra angle and straight handpiece and Marathon.