The product is a set of two 18" universal lawn mower blades with a 1" hole, suitable for gas-powered lawn mowers. Manufactured by Arnold and compatible with STENS 300-129, these mower blades are made in the United States. With a length of 18 inches and a width of 2-1/4", this set of blades is designed for efficient cutting and maintenance of lawns in yards and gardens.I HAVE MANY ADAPTERS FOR CENTER HOLE AND WILL INCLUDE THEM IF I HAVE THE SIZE YOU NEED