5-Pack: Waterproof Clear Sleeve CDC Vaccination Card Immunization Record Holder Display Vaccination Card at Airlines for Quick Entry. Use and Reuse for a Health Record Keeper. Great for Teachers, Students, Nurses, Office Employees, Doctors, Government Officials, Police, volunteers, and More. Waterproof, sealable, durable clear card pouch which keeps contents safe and dry. Dual-use hanging slot/holes design, the middle slot for lanyard, keychain or retractable carabiner reel clip, both side holes for the cord/strap/string/thread. Use for Meetings, Senior Centers, Reunions, Festivals, Retreats, Family & School Reunions, Store Tags, Fundraisers. The maximum Suitable card size is 4" L x 3" W. Product dimension - 4 x 3