Hole Sealing HF I Code SLIX Passive Livestock RFID Ear Tag is made plastic or TPU material with rfid technology .13.56MHz HF ICODE SLIX chip ISO 15693. Widely use for livestock management ,anmimal tracking ,etc .Durable material can make them work under harsh out-door environment and higher can work in 100℃ keep 1 hour and 20 time cycles .different kinds of size and shape can meet many kinds of livestocks for quick sensitivity in rfid technology for good management