Search query: cup holder for car without cup

Product: 2 Pack Car Cup Holder Expander Adapter with Adjustable Base - Rubber Tabs Cup Holder Fits Most 32 oz - 40 oz Bottles and Cup Features:
Fits diameter 2.5"-3.75" console cup holders.
Fits most brands bottles in 3.4"-3.8" diameter.
Stops the larger ones from rattling and spilling.
Keeps the water bottles in place securely.
Fit for most brands bottles:
Klean Kanteen: 40 oz.
Takeya: 32 oz and 40 oz.
Camelbak: 32 oz. and 40 oz.
Hydro-Flask: 32 oz. and 40 oz.
Healthy Human: 32 oz and 40 oz.
Nalgene: 30 oz., 32 oz., 38 oz., and 48 oz.
Yeti Rambler: 20 oz., 26 oz., 30 oz., and 36 ounce (14oz. will NOT fit)
Insert is expandable from 2.5"-3.75" in diameter to fit many different automotive cupholders. It also works great for golf-carts, motorcycles, boats, trucks, and RV's.
Adapter works best with bottles/cups 3.4"-3.8" in diameter and fits most 32 oz. - 40 oz. water bottles.
1" slot in side of expander allows cups or travel coffee mugs with handles to fit into the adapter.
Easy to add or remove from cup holder,Just twist the top of the adapter to expand or retract the base.
This car cup holder built with solid and thick plastic and the rubber tabs around the top of the cup holder hold the cup firmly in place without tipping or spilling when driving down the road. PFCC