Color: Orange Material: PU Hardness: 82A Shaft Inner Diameter: 19mm or 0.75 inch Total Size: 24 x 70mm or 0.94 x 2.76 inch(WOD) Packing List: 8 x Skate Wheels Advantage: Made of polyurethane, outdoor wheels have the characteristics of non-slip, good compression resistance, and shock absorption, making sliding more comfortable. They have good wear resistance and long service life. Skate accessories can smoothly pass through various roads, such as gravel roads, brick roads, and speed bumps. Roller skate tool has a good rebound, making it faster and more stable in grip. Suitable for parks, asphalt roads, roller skating scenes, and other places. Instruction: Install the screws and tighten them, and turn the wheel to adjust the tightness. Application: These wheels are used for the modification of outdoor sports enthusiasts' roller skates or the maintenance and replacement of accessories. They are also suitable for skating, caster boards, and luggage suitcase. Note: The bearings are not included.