The 1:1 contra-angle handpiece can connect to polishing burs, prophy cup & polishing brush. Specifications: - Power supply type: plug-in power supply. - Supply voltage: 220V. - Input power: 65 (w). - No-load speed: 35,000 (rpm) - Bur diameter: 2.35 (mm). Package includes: - 1 x 35,000rpm Marathon-3 Champion Control Box Main machine 220V. - 1 x High-Speed 35000rpm SDE- M33Es handpiece. - 1 x Dental 1:1 Contra-angle handpiece. - 1 x Foot Pedal Switch. - 1 x Handle bracket. - 2 x Carbon Brush. - 1 x Wrench. - 1 x Free Plug. - 1 x Operation Manual in English.