SOD peg with 7075 alloy core for low weight Proprietary sleeve lock prevents the sleeve from spinning around the core 4mm thick sleeve material for improved durability 3/8` hat spacer included for use with 3/8` axles 14mm - 3/8` Black 38mm Aluminum Core - Plastic Sleeve 108mm IndividualUPC/EAN/GTIN: 811120035212