Clear Horizontal Locking Plastic Card Holder by Specialist IDUniversal Key Sold Separately) Insert Size: Standard Credit Card Size: 3 3/8" X 2 1/8" (86 X 54 Mm) Outer Dimensions: 3 7/8" X 2 1/2" Outer Dimensions: 3 7/8" X 2 1/2" Designed to hold two standard credit card sized ID badges Clear Rigid Badge Holder Requires key to unlock, p/n SPID-9560, sold separately.