Hign-concerned Chemical: None Type: SPOKE TOOL Name: : 1.Specifications : Product Name: Wheel Center Positioning Gauge Material: Aluminum Stainless steel+Nylon Model: TL-225 Packaging: Boxed Weight: Approximately 773g per set Applicable: 12 "-29" wheelsets Function: Used to measure whether the wheel frame is located at the center of the flower drum. 2.Features Aluminum alloy bow shaped body, sprayed with plastic; Aluminum alloy measuring rod, positioning O-ring; Removable nylon slider with tire operation, suitable for different types of wheelsets such as road bikes, mountain bikes, or BMX; It can also be used without a slider, but the tire must be removed from the wheel. 3.Notice Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Color: Blue Material: Metal Package Contents: 1*Wheel Positioning Gauge 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.