Agility by Carlson Blue N Red Mini Tire Jump The 40" X 36" frame is made from 1 1/4" PVC Schedule 40; Inked print and bar codes on PVC are left on Height adjusts: 8", 10" and 12" Top grade tape made from industrial nylon (not duct tape), weather resistant. 20" diameter tire - Very easy to adjust tire up and down, easy to assemble and remove Tire made of drainpipe, making this a lightweight and solid tire jump