A very nice design for your 4th of July party or just to show your patriotism. The Patriotic Wave pattern is unique and colorful. As with all the tyvek wristbands, these have the aggresive adhesive to hold them on the wrist, with tamper proof slits behind the adhesive that causes the wristbands to shred if tampered with. They come pre-numbered so you can keep track of the number of people in attendance for your event. Each box is sold in increments of 500. However, if 1000 are ordered, they will be packaged in one box of 1000 wristbands. If you have any questions, please call 253 841 4057. We are happy to help.