These are Replacement Uprights for the Tamiya TA01 chassis. These are also referred to as steering knuckles. Red plastic construction Two steering knuckles Cutting parts from parts tree. Length: 23mm (0.90") Height: 26mm (1.03") These can be used on: Dirt Thrasher, Blazing Star, TLL-01B, TA02W, XB Super Manta Ray. cmc 10/06/02 ir/kh &