non-stick grilling bags was made of glassfiber,coated by PTFE .                        
1.Reusable
2. heat-resistant up to 260ºC (500ºF)
3. no need for grease - promotes healthier eating
4. easy to clean in soapy water (just turn the bag inside out)
5. complies with Food Regulations
6. because the bag is transparent, you can easily see when the food is ready,appliances stay clean
7. No need for butter, so it’s extra healthy