This is a fiber lid made by blended bagasse and wooden fiber through hot press technology:

1. It has a smooth outside and a mesh pattern internal side.
2. There is a specially designed convex ribbon inside the hem of the lid to lock the brim of the paper cup for safety.
3. A stadium-shaped sip hole on the top of the lid.
4. A vent hole opposite the sip hole for air exchange during drinking.
5. A triangle-shape sinking area in the middle of the top panel of the lid for holding the occasionally spilled-out beverage and enhancing the strength of the lid. Caution texts, recycling icons, and brand logos can be put here for identification.

Below are the typical specs of the lid:

1. Outer dimension: depends on the cup size.
2. Internal dimension: depends on the cup size.
3. Weight: 4-5 grams, depending on the cup size.
4. Color: white or nature (brown).
5. Wall thickness: 0.6 mm.