Flexible Shaft Tool Attachment with 0.3-6.5mm Chuck Handheld Drills, Extension for Grinding and Polishing, Compatible with Jewelry, Crafts, and Woodworking.Length is 97CM, Shaft diameter is 4MM, Handle can clamp sizes from 0.3-6.5mm, Handle size is 6mm, Color is customizable, Material is metal.Package includes: 1 flexible shaft, 1 handle, 1 key.