Key-Bak SUPER48 Locking Retractable Key Holder, Black Polycarbonate Case, Leather Duty Belt Loop, Oversized Split Ring and Made in The USA USA made: the Super48 heavy duty key holder is manufactured in Ontario, California USA by KEY-BAK retractable reels, inventors of the self retracting key reel in 1948. KEVLAR CORD: Features a tough Kevlar cord has been tested to over one million pulls, to outlast any other retractable key holders on the market. OVERLOAD BALL-JOINT LOCK: Patented locking mechanism on the SUPER48 Key Holder will ensure your keys, tools, and other items stay right at your hip without dropping to the ground when you exceed the retraction force. HEAVY DUTY MATERIALS: The impact resistant polycarbonate case on the SUPER48 heavy duty retractable key holder was built for rugged use and hard work. 1-MILLION PULLS: All USA Made KEY-BAK Retractable Reels are proven to last over 1-million pulls and backed by our Lifetime Service Policy.