The Large Silicone Sink Mat fits in my sink and I customized it to fit my sink by cutting holes to fit around my sink drains. It's dishwasher and heat safe. Once I was through cooking I always put my pots in the sink while they are hot and I messed up my sink but now since I've had the mat I'm very pleased. My silicone mat has cushion to protect the sink, glasses & dishes from scratching the sink. I love the way it fits in my sink and no more messing up my sink.