✨ 100 6″ x 9″ Catalog Envelopes, Peel & Seal Flap, Sturdy 24lb. Paper, 100 Count (Pink) ✨. 6″ x 9″ Pink Catalog Envelopes, Peel & Seal, 24LB, 100 Count. Peel & Seal Closure. 100 Envelopes. Catalog / Open End Style.