[High Quality Materials] - The anatomical brain trays come in ten pieces. Fun tray set made of acrylic, high and low temperature, strong and . Beautifully patterned and each tray is coated with a sealant to prevent the decal from rubbing off. [Anti-slip] - Our brain slice trays have four rubbers on the bottom to prevent slipping. Stabilize the cup and protect your table from scratches. When you enjoy a hot drink, it will not leave any marks on the table. It also does not make much noise when you place the cup on the table. [Easy to Clean and Store] - Hand wash only, you can also use a cloth to gently wipe clean. Cannot be placed in the microwave. The funny drink coasters measure 4 inches, for a variety of mug sizes. [Interesting Organ Design] - Stacked in label order, you can see a 3D brain, fun and doesn't take up space. [Meaningful Neuroscience Gift] - These medical coasters will be very meaningful as a thank you gift for doctors, nurses, medical students, medical staff. The strange coasters will also be a special decoration for the office, coffee table. Graduation gifts from medical school. Strange gifts. Color: As shown Material: Acrylic Package Contents: 10 * Trays Only the above package contents, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.