Very similar to the Tamiya TT-01D suspension parts. Includes upper and lower rear arms with mounting points for the rear stabilizer bar and adjustable camber with a turnbuckle on the upper arm. Also has setscrew on lower arms to adjust rear suspension droop. The big difference between the Tamiya and 3racing parts is the pins and clips the 3racing part uses to replace the factory plastic pins and step screws. This can make the suspension travel smoother, and can reduce slop. Great parts, and easy install.