Health And SafetySilicone lids food covers are Non-toxic, yoghurt pot lids silicone are made of food grade silicone,100% high quality silicone. Compared to plastic cling film and cling lids, silicone stretch lids food covers are reusable and have a soft and flexible texture, making them an nice choice. Package SizeYou will receive 4 different sizes of food covers, sizes are 13.5*10.5cm, 11.5*8.5cm, 9*6cm, 6.5*4cm, each size of food covers can be flexibly and freely stretched with an elasticity of approximately 1-2 cmrandom color, can lids feature a fun vegetable design that makes it effortless to identify stored ingredients. The silicone lids food covers offer excellent sealing and elasticity, ensuring that food remains fresh when stored in the freezer. Good SealingReusable silicone stretch lids food covers are designed with grooves around the edges, which maximizes the sealing of the lid and prevents the food in the box from coming into contact with the air and causing spoilage, provide a maximum seal on your containers and prevent spillage. High Temperature Resistant & Easy To CleanSuitable for use in the fridge, microwave, dishwasher and picnic, the silicone stretch lids food covers are easy to use and portable. Microwave lid cover for food are easy to clean, simply rinse with warm soapy water or throw in the dishwasher and wipe dry for long-term use. (Note: Do not seal the container when heating in the microwave) Wide ApplicationEach size silicone lids food covers can match with many container sizes and shapes. Expandable for containers,can,cup,bottles,pots,jar,pyrex, food can, instant pot, crock pots, ideal for storing leftovers, drinks , leftover fruits and vegetable.