The all new Click Ergo Tapered from 25 to 32mm for optimum comfort for all hand sizes Allows you to get closer to the cartridge than ever for ultimate precision and control Supports a natural ergonomic drawing position Redesigned groove pattern provides a supported index rest and relieves hand fatigue Tool-less disassembly allows for safe sterilization, compatible with autoclaves and cold sterilant methods Ratchet Disc click system prevents involuntary turning, even with heavy machines 3mm center bore is compatible with all built in drive bar machines Autoclavable Drive Bar included with each grip Anodized for durability and available in 7 colors