General description These 30 pieces of 608zz ball bearings are high-quality, double-shielded metal bearings designed for various skating applications, including roller skates, skateboards, longboards, and waveboards. Made from durable carbon steel, they are resistant to deformation under heavy loads and provide reliable performance. Technical specifications Material: Carbon steel Outer diameter: 22 mm Inner diameter: 8 mm Thickness: 7 mm Performance characteristics: Low noise, high speed, high temperature resistance, high load capacity Compatibility and accessories Suitable for skateboards, inline skates, scooters, and other skating applications Other information Package includes: 30 pieces of 608zz bearings Protective covers on both sides retain lubricant and remove contaminants