⭐ 4×3 IN IMMUNIZATION CARD HOLDER - These clear Vaccination Card Protector would be good to store and protect CDC Vaccine Card from getting damaged when used frequently as some Organizations/Institutions have requirements to see immunization card. Use and reuse for a health record keeper. Display vaccination card at airlines for quick entry. Accessible for Barcodes & QR Codes to be read with scanner reader through visible clear plastic protector window.⭐ MULTIPURPOSE USE - Multi-purpose use and reuse for a health record keeper or special promotional events, meetings, concerts, conventions, festivals, retreats, family & school reunions, store tags, fundraisers, field trips, PTA, transit bus, VIP pass, business conference, trade show, airline and more. Great for Teachers, Students, Doctors, Nurses, Office Employees, Government Official, Police, volunteers, etc.⭐ RESEALABLE ZIP & 3 LANYARD SLOTS - Easily open and close with the excellent resealable ziplock closure. Dual-use hanging slot/holes design, the both side holes for the cord/strap/string/thread, the middle slot for lanyard, keychain or retractable carabiner reel clip. Convenient neck hold for horizontal 4" x 3" badge, pass, credit card, ticket, card, document, photo, paper or credential, permit, license and more.⭐ SIZE - The outer dimension name tag holder is 4.49" x 3.86" and the inner dimension is 4.33" x 3.42". NOTE- CDC Vaccination Cards can vary in size, please confirm your measurements before purchasing.⭐ WATERPROOF HEAVY DUTY REUSABLE BADGE HOLDERS - The plastic name badge holders are made of durable PVC material. Soft, wear-resistant, corrosion-resistant, dustproof, and waterproof.