Material: WALFOS food grade silicone
Temperature: -40F to +446F (-40c to +230c)
Certification: Rohs,SGS,FDA,LFGB
Feature: collapsible, durable,easy to clean
Material: BPA free 100% Food Grade silicone
Advantage: Heat resistance flexible anti-sip
Size: 5 sizes
Use in: microwave oven fridge kitchen cooking