This is an 8mm hub-centric wheel spacer for the front of the Original or Re-Release Tamiya Bruiser AND the HG p407 1/10 scale Tamiya Bruiser clone. it spaces the front wheels out 8mm on each side, 16mm total width so that the front and rear track width matches. this makes it look better, gives some stability, and gives clearance for extending the steering rod to allow for beter linkage angles for the front mount servo mod.
(23mm inner hub diameter)