Lightweight Composite Flexible Body Braces. Aluminum ends can be crimped, bolted, riveted, or pinned to 3/8" round composite rod. Rod is very lightweight and flexible yet stout enough to take the abuse. Kits are available for Late Models with 40 ft of rod and 40 Mill or Black finish ends. We also offer an inexpensive crimp tool for $21.60 to be used in heavy duty vise or small press. These lightweight braces are very trick and easy to install and saves around 20 lbs per car over spring steel braces!