【High Quality】Made of steel material, sturdy and durable. Great for sharpening precision screwdrivers, etc 【Easy to Use】Light in weight east to handle, the sharpener screwdriver is used to hold screwdrivers when sharpening screwdriver 【Way to Use】This Sharpening holder is a great tool for allowing the correct angle to be obtained and the easy rolling along the sharpening stone 【Good Tool】This repair tool firmly holds screwdriver by springs action, and holds the screwdriver at the correct angle with a rolling over a sharpening stone 【Adjustable Size】Adjustable screw holds precision screwdriver in place at the proper angle for sharpening Specification: Material: Steel Size Chart: Length: 4.5cm/1.77inch Package Includes: 1 Piece Wristwatch Sharpening Holder Note: Please allow slightly errors due to manual measurement and different monitors.