This is a pair of custom rear narrow (short) suspension arms for traxxas Bandit, Rustler, Slash and 4-Tec. These are custom so may not be a direct fit for all vehicles.
You obviously will need to do some tweeking since these are shorter than stock. You can use the stock Slash/Bandit type plastic Traxxas axles if you cut them down.
These arms use stock hinge pins or you can find some 3mm hinge pins that match up if you like.
Work with Traxxas or RPM Brand rear shock towers.
Color may vary slightly-Manufacturing Material plastic
Here is a link to the stock rear Bandit driveshafts you can use and cut them to the right length .
https://amzn.to/3VXGZR0 and the axles here: https://amzn.to/4bqtoah
Or here is a link the the assembled heavy duty rear Bandit/SLASH axles you can cut to fit.