Features: brand new and high quality High Quality: Adopt aluminum alloy new material, for play light weight effect, quick detach type, split structure, protect the bottom end for 30mm straight bottom end and 1.5-inch taper bottom end. Steel Sleeve: 304 Stainless steel sleeve, CNC integrated turning, correct size, the sleeve after heat treatments, high hardness, long life. No Damage: Arc chamfering, match the bottom gear, turning chamfering match the bottom gear Angle, install and drive without damaging the bottom gear. Easy Install: Easy to use and assemble, easy to drive into straight pipe/cone bottom. Package: Our package come with a stainless steel sleeve, a 30mm stright pipe plug-in, and a 1.5inch spinal canal plug-in. Specifications: Material: 304 Stainless Steel+Aluminum Alloy Color: As The Picture Shows Package Weight: approx.640g Size1: approx.50x60mm/1.97x2.36in Size2: approx.50x25mm/1.97x0.98in Size3: approx.248x35mm/9.76x0.38in Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Steel Sleeve 2 Plug-in