The lid cover is made of silicone at food grade. It is safe and healthy. The outer diameter is 4 inches. It can fit 3 sizes which are 2.5 inches, 2.9 inches and 3.3 inches. You can use it to cover your dog and cat food cans. It is very convenient. This can cover is suitable to be a promo gift on some pet shops and trade shows. We can print your logo on it by silkscreen. Welcome your color and logo. 4" Diameter
