3L CORP-Scrapbook Adhesive Envelopes. This package contains ten clear keepsake envelopes in four sizes for holding onto mementos, coins, stamps, ticket stubs and much more! They are great for use in scrapbooks, greeting cards, paper crafts, coin and stamp collection and much more. Each package includes four small (2x2in), three medium (2x4in), two large (3-1/2x4in) and one jumbo (4-1/2x5in) Keepsake envelopes. Self-adhesive, reseal-able flap, acid free and archival safe.