Compact, foldable and highly accurate tool. Fits the bikes with the most common wheel sizes, including 26", 27.5"/650B, and 29"/700. Rotating Bottom Part for easy cleanse of the frame and accessories, allowing for seamless work around the wheel. Lockable measuring gauge, securely lock measurements in place to maintain accuracy while repositioning. Extended thread-in axle, providing additional clearance, perfect for full suspension frames. Sealed bearing ensures smooth operation of the thread-in axle and longevity. Handy gauge storage clips keep your measuring gauge conveniently stored and protected.