100 Pack - Premium Specialist ID Metal Badge Clips with Vinyl Strap - Secure Button and Bulldog Clip (100 Pack Plus Bonus) The Spring is Solid and Strong, and the Strap Snap is a Nice Tight Fit 2 3/4" Vinyl Strap with 1 " Metal Clip (Slip one or many badges through the vinyl slot) ISO Certified (IMPORTANT! Meaning they will Work with any ID badge Slot Hole Badge Holder or Gripper) High Quality, Reliable and Durable. Great for Conventions, Business, Visitor Passes Each 100 or 300 Pack Comes with One of our Our Custom Made "Gold Standard" Specialist ID RFID Blocking Card Sleeves which Also Acts as a Certificate of Authenticity to Ensure You're Receiving a Genuine Specialist ID Brand Product