Basically the toughest looking BMX sprocket you can buy - skull and bones design with Shadow name below Forged from high end, 5mm thick 7075 alloy for incredible strength 24mm bore with 22 and 19mm adapters 1pc/3pc 25T 7075AL Black 1/2` x 1/8` Standard 73gUPC/EAN/GTIN: 810006211436