Shop › Thumb Cup Image 1 of 2 Image 2 of 2 Thumb Cup $35.00 Approximately 3” W x 4” 1/2 T.Made with an indention for your thumb to make for a comfy hold.Holds 12 oz. Add To Cart Added! Approximately 3” W x 4” 1/2 T.Made with an indention for your thumb to make for a comfy hold.Holds 12 oz.