JAM PAPER #10 Metallic Business Envelopes - 4 1/8 x 9 1/2 - Copper Stardream - 50/Pack Color: Stardream Copper Size: #10 (4.13 x 9.5 inches) Quantity: 50 /pack Fashioned from high quality 28 lb paper, features a straight flap that is gummed, and has a smooth finish! These envelopes are perfect to use for sending invitations, greeting cards, RSVP's, thank you cards, gifts for birthdays, graduations, holidays and more.