This silicon wristband WRS74/65 is made of silicon material. It is water-proof and specially designed for swimming pool, theme park for admission or access control, ski operators, etc.
It supports LF, HF and UHF technology, like EM4102, GK4001, T5567/ T5577, Mifare 1K, Mifare Utralight, Mifare 4K, ICODE SLI etc. Operating temperature is -10C to 60C. The dimension is dia74 and dia65, dia65 is for children wearing. It is available with different colors: yellow/ black/ red/ white/blue.