5 Sets/Pairs (10 pieces), Name/ID Badge Magnetic Backing Attachment - Name Tag Holder (5 sets/pairs) 5 Sets/Pairs ( 10 Pieces ) of Premium Quality Name/ID Badge Magnetic Backs Each Badge Back Has 3 Strong Rare Earth Neodymium Magnets Magnetic Badge Holder / Badge Magnets, Blue Plastic Back Plate w/Adhesive Tape Size: 1.75" long x 0.5" wide x 0.25" thickness ( approx. ) Great for office, workplace, law enforcement, school, conferences and crafts.