Hardness: 82A for durable grip on skates, sidewalks, or streets. Performance: Smooth, comfortable, and durable for enhanced skating experience. Usage: Suitable for double row roller skates and skateboards. Ideal for indoor and outdoor use on asphalt, in parks, and other surfaces. Material: Made of PU and PP for durability. Features bright, long-lasting light effect. Tips: The bearing must be securely pressed into the wheel for the light to function properly. Features: - Hardness: 82A provides reliable grip and stability - High-performance design ensures smooth and comfortable roll - Durable construction suitable for frequent use - Material: PU + PP - Color: White - Dimensions: Approximately 5.8 x 3.2 cm (diameter x width) - Bearing: High-speed 608RS (not included) - Core: LED light technology - Application: Double row roller skates, skateboards - Light Resistance: 80% Package Includes: 4 Luminous wheels Note: 1. Due to lighting and monitor settings, actual color may vary slightly from images. 2. Measurements are manually taken and may vary by 0.5–2 cm.