High quality material Beadlock design, don't need to glue 1.9 inch wheel rims are for 1/10 RC Rock Crawler Quantity: 4pcs Outer Diameter: 57mm Thickness: 31mm Drive Hex: 12mm Weight: 83g / pcs Material: Aluminum alloy colour: brown / yellow / silver / Titanium / black / red Package Contents: 4 x RC Car 1.9 inch Wheel Rims Only the above package content, other products are not included. Note: Light shooting 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.