This is a package of Differential O-Rings for the EB-48 Buggy Kit TKRC5000, and SCT410 TKRC5500 from Tekno RC. FEATURES: Seals and helps to restore proper performance of EB-48 and SCT410 differentials INCLUDES: Six Differential O-Rings SPECS: Inner Diameter: 9mm Outer Diameter: 10.5mm jxs 11/23/12 ir/jxs