The food grade Kohana Silicone Sleeve are heat resistant up to temperatures of 230degC to help protect fingers. a great option for grabbing hot plates straight from the microwave, baking sheets from oven, or pots from the stove. These mini pot holders are constructed from durable silicone, the unique textured grip helps you hold tight without losing your natural grip. These are waterproofing and dishwasher safe for and easy clean, stain resistant for long lasting use.