KEY-BAK #488B Retractable Reel with 48 inch (120 cm) Kevlar Cord, Durable Polycarbonate Case, Zinc Alloy Carabiner, Split Ring 48 inch (120 cm) Kevlar cord Tough black polycarbonate case measures 2 inches (5 cm) in diameter with a total unit length of 6.75 inches (12.7 cm) Stainless steel spring, tested to 1,000,000 pulls New, upgraded zinc alloy carabiner Lifetime Service Plan