Difficult to find much to say about rubber stoppers. They certainly perform the function for which I intended when I placed the order. Material appears to be of high quality and, fortunately, they are appropriate for my application. I had lost the little stoppers out of the ends of a few telescopic fishing poles I owned. These serve the purpose of containing the internal section of the pole, so that it doesn't slide out when it is inverted. Delivery of items was prompt and packaging was very adequate. I would certainly recommend this company, based on my experience. They seem to have a wide selection of products that would serve a multitude of purposes.