The 1" advertised diameter is the outside diameter of the bottle. The inside diameter is closer to 1/2". This is confusing and should be specified. The bottles were unsuited for the purpose we originally intended. We were able to repurpose and make use of them. In addition, all bottles were the same weave--the thick one. We did not receive any with the thinner weave. Again, we repurposed to make use of these, which should not have been the cse.