70-1/2"h long x 1/2" wide x .025" thick with 4 teeth per inch hook tooth. Made of carbon steel with hardened teeth, for cutting hard or soft wood, plastic, mild steel and non-ferrous metal (for machines with speed reduction). Fits 10" Rykon 10305 and Sears Craftsman 21400. These are heavy duty, durable, commercial grade band saw blades for industrial, woodworking, DIY and professional craftsmen.