260x85 size

3.00 - 4 10 x 3 Size

C - 248 -21

Cheng Shin pneumatic tires

4 P. R.

(2) are NEW and those aluminum wheels have a keyway

(1) is used Used and that wheel has bearings

All (3) are gray Nylon

I will ship in their original Box 

I am not an expert on these, but I think it is one front (bearings) and two rear (keyways)

Overall tire/wheel diameter is approx. 10"

Aluminum wheel diameter is approx. 5"

Axle hole diameter is approx. 5/8"

I took lots of photos.  I think they will help you recognize if these are the ones you need. Thanks.