sizzling ! Vintage Sears Training Wheels

Vintage Sears training wheels. Super heavy duty. Work fine with contemporary bikes, we took these off our son’s bike recently. I’m not sure what the smaller metal pieces are meant for, we didn’t use them. I don’t know if it’s to help fit on certain types of bikes. Compared to modern training wheels these are super hefty and provided a lot more stability for learning. Please note: The pictures show the wheels on the metal training wheel arm, but I have to disassemble them to fit them in the box to ship. Will ship including original box that has instructions on it. Paper on the front with the picture has come off, but I will attach it with a rubber band.
prompt shipper. I ship same or next day. constantly happy to bundle items.