Specialized S2-Snap Boa Cartridge Dials Description: This Specialized S2-Snap Boa cartridge assembly works to replace retention dials found on select Specialized S-Works Road, S-Works XC, S-Works Women's XC, Pro XC, Women's Cascade, Comp MTB, and Women's Motodiva cycling shoes. Features: Genuine replacement Specialized parts Retention dial sets for shoes equipped with S2-Snap Boas Cartridges are pre-laced and left/right-specific Includes: 1 left cartridge dial assembly, 1 right cartridge dial assembly, 2 laces Specifications: Color: White Shoe compatibility: S-Works Road, S-Works XC, S-Works Women's XC, Pro XC, Women's Cascade, Comp MTB, and Women's Motodiva