Features: Heavy duty, 160g/set, weight over other wheels plus counterweight.Let the car center of gravity is lower, not easy to roll over, more passable.Equiped with metal hex, compatible with Axial SCX24 and TRX4M truck.Packaged by 1/24 scale roof box.Specifications : 4PCS Outer ring thickness: 39.2mm Inner ring thickness: 37mm Thickness: 20mm Hex: 7mm Weight:41g/pcs Material: Metal colour: Black Package Contents: 4 x Wheel Hub 4 x TRX4M Adapter 4 x SCX24 Adapter 2 x Roof Box 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.