Double Opaque Vinyl - 1 clear 1 opaque pocket - Card Holders. Soft Flexible Vinyl Card Holders. Durable Heat-Sealed Construction. Size: 2.437"W x 3.937"H closed. Made-to-order. Per Box of 250. Great For Business Cards, Licenses, Loyalty Cards, Medical Cards, Security Badges, Gift Cards, Insurance Cards, Library Cards and MORE!