Lightweight and low profile; CNC machined aluminum side plates; ANTI-Corosion black Chrome vanadium fastening hardware; V13: Aluminum chain breaker, integrated magnetic quick link holder on side plates; V17: Cast steel chain breaker, integrated spoke wrenches (HEX 8/10mm wrench, 4 spoke wrenches), tubeless tire plug kit; V Pro 13: Hex: 2, 2.5, 3, 4, 5, 6, 8mm; T10, T25, T30; Phillips (96g); quick link; alloy chain breaker (1514g)