2 Pcs Sushi Mat Sushi Making Kit Sushi Rolling Mat Plastic Sushi Rolling Mat Sushi Making Tool Beginner Sushi Mat for Making Sushi Vegetable Roll Roulade and Rice

I already have a wooden rolling mat but thought I would get one that I could put in the dishwasher after use instead.These are no use at all.The finish is really poor, so that there are bits of thin plastic left between the ribs. These are unhygienic and will trap dirt.I tried rolling one of the mats and it immediately gave way through weakness at one place along the width. Now it doesn't lay flat.The mat doesn't roll as easily as a wooden mat either.I returned for refund.