Our cup holder inserts suitable for boat, RV, or cars with 2.8''-4.2'' cup base (Please measure the diameter in advance before you make the purchase). JOYTUTUS cup holder inserts also can perfect replacement couch cup holder. The cup holder can perfectly hold your Hydro Flasks Nalgenes i Ramblers Klean Kanteens or other large bottles. Dimensions of the cup drink adapter: cup base of 2.8''-4.2'' in diameters and fits cups of up to 3.6'' in diameters. To prevent you from buying by mistake, please be sure to confirm the size before buying The package includes 6 pieces of cup holders, which can be installed such as couch, table, sofa, golf cart, dashboard, chair, seatback, furniture, etc. If you have any questions about our drink holder insert, please feel free to contacts us. We will give you a satisfactory solution.
