Eco-friendly material: we chose wheat straw as the material for this product. SIZE: Each toothbrush case is 8" x 1.2" x 0.8" (L x W x H). Fit for Toothbrush Max Size: 7.9" x 1" Bottom hole design: hole in the bottom this so that when your toothbrush is wet and you stick it back in there it has a way to release any moisture in there it doesn't get all nasty looking About wheat straw material: wheat straw plastic is the latest eco friendly material and is a smart, environmentally friendly alternative to plastic.The impact of regular plastic on the environment is devastating, and wheat straw plastic is an awesome alternative. About the smell: you may feel they have a funny smell at the first time, it's the smell of wheat straw. If you mind the smell, you can wash them with soap after receiving the toothbrush case. Package: 4 Pack Travel Toothbrush Holder Case