Ancra brand cam buckles are 1" wide, made of rustproof cast zinc, and rated at 600 lbs. 1-1/2" cam buckle is an Asian import, weighs 6 oz., tests at about 750 lbs. Polypropylene strap material is handy for a lot of different uses, from wrapping oars to securing box lids and coolers. The 1" webbing is black and is rated at 900 lbs.; the 1-1/2" at 1,350 lbs.