【Compatibility】Suit for for 1/10 TRX6 TRX4 brass upgrades Accessories.【High Performance】This TRX6 TRX4 caster block is designed with a low center of gravity, and lower vehicle center of gravity, Add weight on each side 49g, effectively increasing vehicle weight, making the tracked vehicle more stable during uphill climbs and avoiding rollovers.【High Quality】Made of quality brass, black gold anodizing treatment, CNC machined for precision, increased strength and precision, easy upgrade from the original part.【Easy to Install】perfectly compatible with original inner portal housings or brass portal housings, easy to install.【Cost-effective】This brass upgrade caster block is a cost-effective choice, saving you the purchase cost. In addition to their functional benefits, the brass upgrade kit can also add a touch of style and sophistication to your RC car, giving it a more high-end and professional look. Specifications: Product Name: Caster Blocks Material: Brass Color: Black Gold Weight: 49g/pcs Compatible with 1/10 TRX4 TRX6 RC Crawler Car Package list: 2 × Caster Blocks 1 × Screw kit Track Page Views WithAuctiva's Counter