... :Read/Write 3.Contactless tag,Proximity tag Silicon RFID Wristband For SwimmingMaterial:100% silicon Color:blue,red,black ,white ,yellow ,gray ... ,working temperature:-50°C~210°C6,application:widely used in swimming pool ,the cold storage,the wet environment,even in the case ... of being put in water for a long time. Packing1,Weight/pcs:10.75g/pcs2,Quantity ...