Features:These tires are suitable for HPI HSP 94107/94166/94106 and so on.Specification:Tires Materials:RubberWheel Rim Materials:Plastics66005 - Front Wheel Tyre + Wheel RimOut Diameter: 85mmInner Diameter: 56mmTyres Width: 32mmHexagonal joints: 12mm66025 - Rear Wheel Tyre + Wheel RimOut Diameter: 85mmInner Diameter: 56mmTyres Width: 40mmHexagonal joints: 12mm Package Included:2x Front Wheel Tires + Rim2x Rear Wheel Tires + RimNotice: Tires are not glued on rims、 it's mount on rim with foam inserted.