This is a Sierra Lid from CAMPING MOON. The color is a rare black. I bought it but never had a chance to use it. It's an unused item, only taken out of the bag. From the manufacturer's website: Model number: S-GH-C Size: Diameter 12cm, Length 13.5cm (including handle), Thickness 1mm Color: Black Weight: Approximately 100g Contents: Lid only Material: Silicone (Food Sanitation Law compliant) Application: 12cm Sierra cup "lid" Applicable to Sierra cups S-220, deep type S-360, and deep type S-369.