Bulb Industries welding coupon set is great for any type of welding MIG, TIG, Stick, Arc, Gas and Brazing. Cut to a convenient size to practice your welding skills, or for testing a new welding machine or settings. Each set includes 6 coupons 2 inch by 4 inch by 1/4 inch thick. Made in the USA with USA hot rolled steel flats saw cut and de-burred and ready to weld. Steel comes pickled and oiled (P&O) for a rust resistant finish.