Single Drink Holder/Cell Phone HolderFrom bass boats to tuna towers, this economically priced single drink holder is constructed of 100% marine-grade polymer and includes three suction cups that may be mounted on the back or bottom in pre-drilled holes. Versatile mounting options permit use almost anywhere, and may also be permanently attached. Measures 4 1/2" wide x 4 5/8" long x 3" tall, 3.5 diameter. See our complete line of cup holders, we make a version for nearly every occasion. Lifetime warranty.Features: 100% Marine-Grade Polymer Predrilled On Back & Bottom For Suction Cups 3 Large Suction Cups Included Lifetime Warranty