APPLICATION RANGE: Our roller skate wheels are great for four-wheel roller skates or skateboards, suitable for beginners and professionals. DURABLE DESIGN: The 82A hardness wheels of these roller skates are made of quality PU material, durable and have a long service life. Wheels can withstand heavy loads and rough surfaces, providing a smooth and comfortable skating experience. FUNCTIONAL TOOL: The bearings reduce friction between the wheels and axle, which makes it easier for the wheels to maintain high-speed operation. PACKAGE INCLUDE: 8Pcs Roller Skate Wheels with Bearing Installed, 2 Toe Stoppers, 2 Screw, 1 Wrench, 1 Screwdriver, 8 PU shock absorber. NEED ATTENTION: This roller wheel is NOT suitable for inline skates.