Rock Shox rear shock vise blocks The Rock Shox Vise Block is essential for properly servicing your Monarch, Vivid and Vivid Air rear shock. The Vise Block securely holds your shock without slippage or scarring so you can confidently perform vital shock services. Features 3-hole design is compatible with Monarch, Vivid, and Vivid Air shocks Securely holds your shock in a vise without damaging vital parts Manufacturer part no. 00. 4115. 154. 020 | Rockshox | Rear Shock Vise Blocks 3 Hole For Monarch / Vivid / Vivid Air