Easily attach these Advantus Carabiner-Style Retractable ID Card Reels to a belt loop, case or purse strap.;The carabiner-style clip offers a more secure connection and frees you from wearing your ID around your neck.;Each reel has a clear badge snap that connects to your employee or other identification cards (holders sold separately).;The retractable cord extends up to 30 inches to allow for convenient scanning and swiping of cards and retracts easily for convenient wearing.;With 20 assorted color reels per pack, these are an excellent choice for small or large office use.