Tyvek® wristbands are a simple, colorful and effective way to identify guests. Can be used in a variety of ways, including admission control, designation of special privileges or wherever visual labels are required. Sequentially numbered. Adhesive closure. Wristband Type: Security/Crowd Management; Color(s): Yellow; Depicted Text: Sequentially Numbered; Material(s): Tyvek® Band/Adhesive Closure.