SRAM Vise Blocks Secure Shock Service, Every Time This genuine, high-quality vise block securely holds the shock shaft during service, with an L-shape design featuring three openings to accommodate different shaft sizes. Whether you're servicing a rear shock or a Reverb dropper, having the right vise block on the bench makes the job faster and more precise. Features L-shape, 3-hole designaccommodates a range of shaft diameters for rear shock service Genuine Rock Shox specialty toolbuilt for accurate, repeatable service results Broad compatibilityacross multiple generations of Rock Shox rear shocks and Reverb dropper posts SPECIFICATIONSDesign L-shape, 3-hole vise block Compatibility Rock Shox Monarch, Monarch Plus, Vivid, Vivid Air, Deluxe, Super Deluxe, Kage, Ario, and Reverb/Reverb Stealth B1 (2017-2019) | Sram | Vise Blocks Vise Block Suspension Forks B1