Screwpop Twin Trak Dual Chamber Utility Knife (Ambidextrous Deployment) Backup Blade Holder for Keychain or Carabiner Type II Hard Anodized Aluminum Body Spring Steel Lever Black

["PRACTICAL -- The World's most HANDY utility keychain knife: cut, slice, score and much more!","FEATURES -- Two 4-step utility blades (fits 2 notch standard utility blades from all brands). The opposing side is ideal for extra blade storage","AMBIDEXTROUS -- Designed for both left and right-handed operation and function","FUNCTION -- Easy one-handed operation, universal grip, super fast deployment and gravity retraction of blade (protective lubricant on new blade and/or knife track may require drying for smoother blade movement).","MAGTRAK TECHNOLOGY -- Blade is safely retained in the stowed position (when retracked) by ultra-strong N52 Neodymium magnet","INTEGRATION -- Attach to keychain, carabiner or lanyard for ease of use in everyday life... includes 3\" black carabiner (shown in picture)"]