Specialist ID Black Dual Card ID Badge Holder - HOLDS 2 CARDS - Rigid Hard Plastic HOLDS TWO CARDS - Holds 2 Standard Credit Card Size ID Cards (1 Front/1Back) WORKS IN BOTH HORIZONTAL AND VERTICAL DISPLAY SLOT HOLES WORK WITH YOUR CLIPS - Lanyards, Badge Reels and More! SPECIALIST ID QUALITY - SPID-AH150 SLIM & LIGHTWEIGHT BUT HEAVY DUTY - A Popular Choice For Police, Security, Military, Even Office and Medical - Compatible with Prox, TWIC, CAC, Driver's License, Membership Cards, Work Access Badges, Hotel Key Cards Etc..