Tamiya has released SW-01 Reinforced C Parts Joints under SW-01 Hop-Up Parts category
These cup fiber-reinforced plastic C elements have actually great durability and fit. Ideal for usage with Item 54950 SW-01 Reinforced B Parts (Bumper).
Compatible Chassis SW-01 Chassis
*The official Tamiya R/C Parts Matching List has plenty of information about framework appropriate Tamiya free and Hop-Up choice components.