Car Cup Holder Expander – Fits Big Bottles & Tumblers

Your 40 oz tumbler finally fits. Drops into your existing cup holder and expands to lock in place, giving you a wide, stable base for big bottles.

• Adjustable base fits most car cup holders
• Holds large tumblers and water bottles securely
• No tools, no adhesive – install in seconds
• Anti-slip design stays put on turns

Free US shipping.