This C5 Corvette cup holder/bottle stabilizer has an inside diameter of 2.95", so it will fit most bottles, coffee cups, etc. This is the largest cup stabilizer for this location, versus any competitor sold. This product is branded with the KnightDriveTV name on the side and is available in black carbon, black silk, or wood color. These are made to order, by Lace and I, and help support KnightDriveTV production and the hosts family. Thank you for your support! Shipping is included!!!