Silicone | 【Silicone Material】Silicone material is flexible and pliable.This silicone sink protectors for kitchen sink conform to a slight curve up the sink side,cushion the sudden force if dishes or bowls fall into the sink. A good sink protection for your fragile glassware and stainless steel or ceramic sink. | 【Dishwasher Washing】Silicone material is dishwasher washing,easy to clean. Cleaning sink mats with running water is also a good way. Another benefit of silicone material is rustproof, easy to clean. | 【Raised & Solid Bottom Feet】Non-slip and raised feet elevate the kitchen sink mats with drain hole to allow little food particles and water run through it,Protect the Sink Surface from Scratching. Also work as a dish drying mat under the sink. Kitchen sink grid has an center opening for the sink drain,fits most double or sigle bowl sinks center drain hole. | 【Heat resistant】Our sink mats and protectors can handle up to 500F so that you can safely place pots and dishes in the sink or porcelain countertop directly from the oven or stove.Also use as a drying grid, dishware drainer,drain rack, cooling rack, defrosting grid etc. | 【Center Drain】Size: 24.8"x 13". Before selecting the size, please measure the length and width of the bottom of your sink first, and then confirm the drain position of your sink (this is center drain) to select the correct drain open and size to ensure that you can use the sink mat normally. It is recommended to regularly clean the silicone sink protectors for kitchen sink.