Korkers M4 Boa Dial and Lace Repair Kit is a replacement dial-and-lace kit for M4 BOA equipped wading boots. Keep your BOA boots wading-ready with this precise kit that replaces the dial, lace, and includes a tool and instructions. Sizes 7-11 FA8740 are 120 cm; sizes 12-14 FA8741 are 130 cm. Korkers Boot Compatibility includes Darkhorse and Devil's Canyon at the listed lengths, Chrome Lite at 140 cm for all sizes, and River Ops at 140 cm up to size 13. - Includes one precut lace, dial, a tool, and instructions - Replacement dial-and-lace kit for M4 BOA system on wading boots - Two length options to match common boot size ranges - Compatibility: Darkhorse 120 cm (7-11) and 130 cm (12-15); Devil's Canyon 120 cm (7-11) and 130 cm (12-15); Chrome Lite 140 cm all sizes; River Ops 140 cm up to size 13 - Designed to restore secure dial performance and lace tension in the field