Suitable for beginners and beginnerfriendly use These flash wheels are an ideal gift for skaters. They are not recommended for riders over 120 lbs or for aggressive casterboard use. Key specifications to note Wheel size: 80 mm diameter Wheel thickness: 24 mm Hardness: 82A Kit includes: 8 wheels with builtin three LEDs that flash as the wheel turns Important: Please verify the size specifications to ensure these wheels fit your inline skates, caster boards, or luggage before What makes them stand out rebound polyurethane for smooth, responsive rolling and better energy Visible LED lights add daytime and nighttime visibility during use A complete 8wheel set provides ready replacement options for compatible equipment Compatibility and use cases Compatible with most inline skates, caster boards, and some luggage suitcases Practical for daily practice, recreational skating, artistic skating, and hockey skating Use scenarios Scenario 1: Daily practice for beginners learning balance and control on inline skates at the rink or on smooth pavement Scenario 2: Recreational or artistic skating sessions, including light routines or drills, where stable 80 mm wheels improve glide and confidence Scenario 3: Replacement wheels for compatible luggage suitcases, offering a practical upgrade for travel gear when suitable Safety and limitations Not suitable for riders over 120 lbs Not intended for aggressive casterboard use