KEYSTONE KLASSIC BIG & LITTLES M29. These are scale 15” wheels, measuring 0.620" behind the bead. Rears are 0.290" wide. Fronts are 0.175" wide. Comes in a set of 4. Two(2) front and two(2) rear. These wheels will require a set of wheel backs to install. S15 or S16(sold separately).