This item is for use on 1/24th & 1/25th scale models. 1/25th Scale Mickey Thompson Tires & Wheels Pro-Touring ~ Seven Spoke ~ (Front & Rear With Adjustable Offset) This package contains the following items: (2) Mickey Thompson Sportsman Style Front Tires on 7" x 20" single piece aluminum wheels with Seven Spoke style resin inserts. (2) Mickey Thompson Wide Rear Tires on 18" x 23" multi-piece aluminum wheels with Seven Spoke style resin inserts. Resin mounting hardware is also included. The rear wheels in these sets have a revolutionary new design that allows the builder to adjust the offset of each rear wheel without sacrificing accuracy or appearance. By simply moving the position of the resin insert and the aluminum inside spacer, several different offsets can be achieved.Arrowhead Aluminum Accessories