Material: PVC 

Feature: Disposable, Waterproof, Moistureproof, Bally Flex, Durable 

Size (inner diameter): Adjustable, Single use

Colour: red, bule, green, yellow, orange white, black etc

Radio frequency: 125KHz/ 13.56MHz/ 915MHz

According to: 18000- 2/ ISO14443A/ ISO15696/ 18000-6B

Working temperature: -30°C~75°C

Logo: Silk-screen printing/ Laser engraved

Packing: 100pcs/polybag, 3000pcs/carton