Seven Sparta 2 Pack Car Cup Holder Expander with Adjustable Base, Compatible with Hydro Flasks 32/40 Ounce, Compatible with Yeti Ramblers 20/26/30 Ounce, Other Bottles in 3.4"-3.8" (Black)

What is the difference between the upgrade version and the basic version? The basic version accommodates cups with a 3.4-3.8 inch diameter.

The upgraded version, with an offset base, is larger and suitable for cups with a 4 inch diameter, such as the Yeti Mug 14oz and Rambler 36oz, 40oz.

Compatibility Compatible with Hydro-Flask 32 oz.

and 40 oz.; Mug: 6 oz., 12 oz.

Compatible with Yeti Rambler 20 oz., 26 oz., 30 oz.; Mug: 10 oz.

Compatible with Stanley Travel Tumbler 20 oz., 30 oz., 40 oz.

Compatible with Nalgene 30 oz., 32 oz., 38 oz., and 48 oz.