Durable Construction: Crafted from high-quality materials, the for TOOPRE Bicycle Chain Checker ensures longevity and reliability. Perfect for frequent use. Accurate Wear Measurement: Provides precise measurements to help maintain the efficiency of your bicycle chain. Prevent premature wear and tear by regular checks. Universal Compatibility: Designed to work seamlessly with both mountain and road bike chains. A versatile tool for all cycling enthusiasts. Easy to Use: This tool is user-friendly, making it suitable for both amateurs and professional cyclists. Quickly assess the health of your bike's chain with this straightforward device. Compact Design: Lightweight and portable, easily fits in your bike maintenance kit. Ideal for on-the-go repairs and checks. Specification:B:TL-3.0, hollow out model/A:TL-2.8, standard model Color:Blue Material:Aluminum Alloy Package Contents: 1 * Bike Chain Checker Chain Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.