1. We Use High Quality Silicone Material. 2. The Item Can Withstand Temperature Range: -40~200 Degrees Celsius. 3. It's Tasteless, Non-toxic, Anti-dust, Durable, No Penetration, Easy To Clean 4. It Can Use In Oven, Microwave Ovens, Dishwashers And Refrigerators 5. It's Easy To Handle Product Size: 23*10.8*2cm Hole Size:2.5*2.5cm Product Weight:61g