Silicone Material:8pcs spatula set are made of silicone,good stability,no odor,high temperature resistance(-50℃-250℃). Suitable for all kinds of ovens,refrirators,microwave ovens,etc Multi functal kitchen utensils:Rubber Jar Scraper is the kitchen gadt suitable for scraping j/peanut butter/mayaise/ey from jar or deep containers.