At 1-5/16" x 7/8" these are solid little wheels!

Great for dragsters and miniature 4x4 trucks.

The hole through is 3/16... perfect for pressing onto 3/16" steel axle rod that passes through and turning inside of the body of the toy. This makes for a very strong toy.

If you prefer to use wood dowel or wooden axles, you will want to drill the hole out to the size you prefer.