Silicone Wristband Specification: 1.Material: Silicone Rubber 2.Type: firmed size for child or adult, adjustable size 3.Frequency: 125Khz, 13.56Mhz 4.Operating Temperature: -40 to 120 ℃ 5.Storage temperature： -40 to 120 ℃ 6.Craft：Blank or color printed（ s
