Tyvek kids wrist band is a popular one-time-use tamper-resistant children activity management product tyvek is a waterproof material which can be used in outdoor activities ideal for both wet and dry environments it has a strong adhesive closure and each tyvek wrist band comes sequentially numbered for easy audit control and revenue tracking purposes 13 most popular colours available. Colours: Black | White | Red | Purple | Lavender | Forest Green | Light Blue | Light Green | Neon Pink | Gold | Silver Grey | Orange | Yellow. Available Branding: Screen Print. Item Size: 155mmW x 19mmH.