Description: This item is a solid and satisfying coaster for cups, or a key, coin, or jewelry tray. When you put something on it, it will stay there.

This item is about 65% carbon that we made from plant biomass with solar energy.

By buying this item, you have pulled about 65 grams of carbon from the air and locked it on your desk or table.

It is about 35% polymer binder. The binder is FDA approved; it can contact food. But do not eat or drink directly off it, especially hot food and drink.

Customization (+ 5.00 USD): This item can be customized with up to 8 short lines of text, less than 20 characters on each line, or a square or rectangle logo. We cut your website, QR code, black and white text, or design into the smooth top surface with an industrial laser. Customization cost is less per item if bought in quantity. Contact us for details.

Registered: Most of our items over 10 grams are numbered and registered on our carbon registry.

Buy single items or subscribe to get weekly or monthly carbon offsets for you or your company.

Choose: Bamboo Carbon, Spent Coffee Ground Carbon, or Oak Tree Waste Carbon

Each is similar, but Bamboo Carbon usually has less bubbles, so it is a bit heavier.

Delivery: A week to ten days to US mainland post offices. Longer for farther away.

You pay first class or rush postage.

Return Policy: No one has returned one yet, but you can return it within three weeks of purchase for a refund.

Size Metric = 100mm x 15mm

Weight Metric Total = About 100 grams

Weight Metric Carbon = About 65 grams