ULTIMATE EXPANDER® - Expandable Cup Holder up to 4.0"

A CUP HOLDER FOR BOTTLES & MUGS THAT WON'T FIT  The Ultimate Expander™ installs into your vehicle’s cup holder in seconds and holds your water bottle, thermos, or mug in a firm, snug fit. Travel with your version of YETI, RTIC, Milwaukee, Nalgene, Hydro Flask, CamelBak, and more. Holds any bottles or mugs from 3.4" - 4.0" in diameter.  OFFSET AND HEIGHT ADJUSTABLE  Offset the base from the expander to keep the adjacent cup holder open. This also allows two Ultimate Expanders to fit next to each other in most dual cup holder applications. Recessed or covered cup holders? No problem! We also include two spacers that can increase the height by 1" each. Between the height and offset adjustability there isn't a vehicle the Ultimate Expander will not work in.  STAYS FIRMLY IN PLACE Enjoying a bit of rough terrain? An adjustable base is the only way to keep an expander and oversized bottle firmly in place. The Ultimate Expander features a 3-ring expandable base with a diameter range of 2.