These bowls are made from nothing but paper and water. We had the opportunity to make them white, but this meant using chemicals, and we did not want that, so the bowls are the natural color. The base of these bowls is a bit over 10 in. the top diameter is a bit over 7 ½ in. and they are 2 ½ in.high, just like the originals. The texture is a little rough, the reason for this to allow the babies to get a good grip when they try to stand up, which will reduce just about any possibility of splayed legs. Paper/Pulp Sanitary Nest Bowls are meant to be disposable after the young are raised and out of the nest.