1.【PERFECT SEAL DESIGN】 These silicone food covers got thicker groves on the edges providing a maximum seal. 2.【Reusable 】Silicone covers for food are reusable lids, without the need to repeatedly buy expensive plastic wrap and save money on food by storing delicious leftovers for another meal. 3.【Easy to Clean】Silicon lid create a perfect seal on any glass, plastic, or metal containers and serve as a replacement for lost lids for round shape containers. Just place them in the dishwasher with soap in warm water after each use. 4.【ENSURE FOOD FRESH】The silicone bowl covers keep the residual fruits, vegetables and drinks fresh or avoiding foods from spattering in the microwave oven. 5.These silicone lids are stretchy and flexible enough to snuggle over containers to prevent spills.