This set includes 50 #10 envelopes and 50 stickers. Measuring 9 1/2 x 4 1/8 inches, they are suitable for letters, invoices, birthdays, baby showers, and various festive occasions. The envelopes are crafted from 120gsm paper, offering a thick, durable feel and excellent sealing performance. The surface is easy to write on. Two sealing methods are available: you can moisten the adhesive strip and press to seal, or simply use the included stickers to close the envelope. Weight: 0.88 lbs.