ITEM NAME:Pack of 8pcs Durable Inline Skate Screws and Spacers Axle Bolts Skate Wheel Description: Made of hight quality aluminum alloy, strong and durable. Deeper Inner hexagonal hole, not easy to slip. Easy to install and replace. Diameter: 6mm / 0.24inch; Length: 31mm / 1.22inch. Ideal replacements for inline skate wheel. Specification: Material: Aluminum Alloy Length: Approx 31mm / 1.22 inch; Diameter: Approx. 6 mm / 0.24 inch Color: Silver Package Includes: 8 Pieces Screws with Spacers Note: Please allow slightly size error due to manual measurement. Color might be slightly different since different monitor and light. Please make sure you don't mind before you order. Thank you. SKU: DMO0012162766014954.8 Pieces Screws with Spacers. Made of hight quality aluminum alloy, strong and durable. Deeper Inner hexagonal hole, not easy to slip. different monitor and light. Easy to install and replace. Color might be slightly different since.