zorratin High-Impact Compact Plate Emergency Seat Belt SEATBELT Safe Belt Cutter Blade Survival Knife Red Made of high-impact solid plastic, which make it very durable. Stainless steel industrial razor blade to ensure a concise cut every time. 4.75 "(122mm) X 1.75"(45mm) size is according to the human engineering design, perfect fit your hand. Package contains: 1 piece seatbelt cutter.( Pleae buy 2 if you need a pair of it)