A reliable, professional option for cassette lockring removal and installation, with a long sturdy handle and a large passthrough hole that allows use without removing most quick release skewer nuts Compatible with 712 speed cassette lockrings, including models made by Shimano, SRAM, and others Also fits disc brake lockrings and lockring adapters with 12 internal splines, and top caps of some RockShox suspension fork models Retailers are not permitted to sell on the Amazon.com marketplace unless authorized in writing by Park Tool