JSP Manufacturing 2 7/8 Black Plastic Drop In Cup Holder Plastic Multipack Wholesale Bulk Listing Poker PLEASE READ--&gt;&gt; Look at 2nd picture for all dimensions. 2 7/8 Regular Black cup holder Top of Cup OUTSIDE Diameter (Lipped Diameter): 3 13/32 or 3.40625 inches. 8.651875 Centimeters. Top of Cup INSIDE Diameter: 2 21/32 or 2.65625 inches. 6.746875 Centimeters. Depth of Cup: 2 7/8 or 2.875 inches. 7.3025 Centimeters. Bottom of Cup Diameter: 2 25/32 or 2.78125 inches. 7.064375 Centimeters. Buk/Wholesale Listing ---The more cups you buy the less each cup cost..