rubber trivet

They are made of silicone. Product listings specify "100% Silicone" or list the material as silicone.

Sizes vary by model and include approximately 4 in, 4.33 in, 6.3 in, about 8.07–8.66 in, and an 11.02 in option.

They’re made from heat-resistant silicone designed to protect countertops, tables, and other surfaces from hot cookware and bakeware.

Listings describe a textured, non-slip surface and a flexible yet durable silicone construction that helps stabilize cookware and allows airflow beneath pots.

They’re suited for kitchen countertops, dining tables, and other surfaces to prevent heat damage. They can be used as trivets, hot pads, or decorative kitchen accents.

Reviewers report the trivets stand up to heat from hot bowls and pots without issue and feel durable when exposed to heat.

Descriptions note the trivets are compact and lightweight, making them easy to store when not in use.