Tag bases are made of a biodegradable Eco-plastic. These tags are sealed with resin, to protect from water or scratches. These tags are incredibly lightweight and almost completely silent. No more jingling and clinging on the water bowl. Jump Ring included for easy attachment to your pet's collar. This item is customizable and your pet's name and your contact information can be added at no additional cost. Please supply any information (name, contact info.) you would like to appear on the tag, as well as the tag color you would prefer.