robocup plus, (purple), designed for large drinks up to a 3.75" / 95mm in diameter. perfect for cups, mugs, glasses, koozies and tumblers. 1 included. attach using the provided two straps and tighten snugly to secure. remove all existing straps from the robocup before attaching the plus. for a more permanent attachment (not provided): (1) stainless steel hose clamp for the top strap (do not over-tighten) and (2) plastic cable-tie for the bottom strap. the position of the plus can be swiveled around the robocup for ideal placement. tall 4”/101mm wall height holds drinks securely and the top rim has a wavy design for easier access of shorter drinks. built with a robust thick wall design with uv-stabilizers added for longevity. backed by a 3 year no hassle warranty and for help anytime please email at help@therobocup.com ROBOCUP PLUS, Add-On Accessory for RoboCup, Perfect for Larger Drinks, Cups, Mugs, Bottles, Stainless Steel Tumblers, Steins, Koozies, Flasks, Jugs, Insulated Containers -- Includes Two Straps, Easy to Use and Fits Securely. Designed for large drinks up to a 3.75 inch / 95mm in diameter including cups, mugs, glasses, koozies and tumblers. Double the RoboCup drink capacity by using two RoboCup Plus accessories. Attach using the provided two straps and tighten snugly to secure. For a more permanent attachment, a plastic cable-tie can be used. The position can be swiveled around the RoboCup for ideal placement. Tall 4 inch / 101mm wall height holds drink securely and the top rim has a wavy design allowing access for shorter drinks. Built with a robust thick wall design with UV-stabilizers added for longevity.