Neoprene Car Coaster. Set of 2 or 4 car coasters to protect your cup holders. Size 2.75 Diameter. Fits most car cup holders. 2 .75 x 0.3mm" thick. These are universal and perfect for any car. They are a great gift, to show off at events, or to be used as promo items. These will not fade or bleed when wet. They soak up water "sweat" perfect to keep your vehicle clean.