Heavy-duty, shop quality chain whip. Custom Lezyne chain is attached with stainless bolts for easy chain replacement (8/9/10 speed compatible). Tool head is made of a precision stamped, CNC-machined heat treated steel plate with integrated lockring tool. 100% CNCmachined aluminum handle for strength and durability. Stainless and high-strength steel fastening hardware makes this an extremely rigid and durable tool.