The lightweight aluminum alloy material is durable and improves the overall performance of the link. Aside from the great looks, aluminum alloy will not flex as much as plastic under stress or during high ambient temperatures. Compatible with ECX 2WD Series ECX03433 1/10 Torment 2WD SCT Brushed RTR ECX03430 1/10 Circuit 2WD Stadium Truck Brushed RTR ECX03431 1/10 Ruckus 2WD Monster Truck Brushed RTR ECX03028 1/10 AMP MT 2WD Monster Truck RTR ECX03029 1/10 AMP DB 2WD Desert Buggy RTR ECX03055 1/10 Brutus 2WD Monster Truck Brushed RTR ECX03034 1/10 AMP MT 2WD Monster Truck Brushed BTD Kit with Unpainted Body