Wicked Caliber Tool - Precision Spacer Measurement Made Simple Dial in the Perfect Fit – Eliminate the bind. The Wicked Caliber Tool is your go-to solution for accurately measuring the correct spacer length between your inline skate bearings. Whether you're a skate tech, a shop owner, or a passionate skater who loves to tune your setup, this tool guarantees precise alignment for smoother rolls, longer bearing life, and a ride that feels just right. Engineered for Accuracy. Crafted with durable, high-grade materials and a user-friendly design, the Wicked Caliber Tool removes all the guesswork. No more trial and error, no more rattling wheels. Just insert, measure, and match — in seconds. Compatible with all common bearing types and wheel cores Measures internal bearing spacing to the tenth of a millimetre Ensures optimal performance and maximum wheel spin Compact and lightweight — perfect for your skate bag or tool bench Please note: The battery is not included. The unit requires one LR44 battery. When used with a rechargeable battery, the device can also be charged via Micro-USB (cable not included). [ "Segments: Roller Skating, Skateboarding", "Packaging Size: x x ", "VPE Packaging: x x ", "Warranty: 2 Years", "Release Year: 25