Advantus : Crowd Management Wristbands, Sequentially Numbered, Yellow, 500 Per Pack 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. Global Product Type: Wristbands-Tyvek; Wristband Type: Tyvek; Depicted Text: Sequentially Numbered; Color(s): Yellow.:Manufactured by.: Advantus