Features Welded tarpaulin, advertising cloth, pvc waterproof coil, and other thermoplastic plastic coils can be welded and pressed flat; Used for pressing the internal corners to prevent cracking and warping at the seams. Offset steel fork, ergonomic 5‑inch wooden handle, can withstand maximum pressure. High‑quality bearings enclosed by brass detail rollers provide the most stable rolling action; This product is more durable than nylon and has a longer service life, is very suitable for membrane seams, overlap welding, etc. Specification:Item Type:  Welding Handheld RollerMaterial: Brass + wooden handle Wheel Thickness: Approx. 6mm / 0.2in Wheel Diameter: Approx. 30mm / 1.2in Total Length: Approx. 190mm / 7.5in(1-2cm error in the manual measurement) Package List:1 x Welding Handheld Roller Package List 1 x Welding Handheld Roller