Lezyne cnc chain rod inc lockring toolheavy duty shop quality chain whip custom lezyne chain is attached with stainless bolts for easy chain replacement 8910 speed compatible tool head is made of a precision stamped cnc machined heat treated steel plate with integrated lockring tool 100 cnc machined aluminum handle for strength and durability stainless and high strength steel fastening hardware makes this an extremely rigid and durable tool featuressize 355mmcnc machined and forged