Description: 1Stable Base: It is easy to remove the cup holder from the slot. And the cup holder has a base deep enough to provide a great balance for your water bottle. 2Solid Material: Upgrade the cup portion of the adapter to a more solid ABS material. For those with oversized water bottles and containers, this is great for keeping them secure. 3Wide Compatibility: This expander is big enough for oversized thermoses, it also can work with most popular brands of bottles and many large fast food cups. 4Easy to Use and Install: After inserting your cup in the cup holder, turn the blade clockwise to enlarge the size of the adapter at the bottom and secure the base, adjust the top clearance with just two fingers, and turn the fitting knob to less than 90 degrees. 5Beautiful Design: Made of high-gloss black material, with high strength and good toughness, the product surface is like high-gloss piano paint, presenting a beautiful visual feast. Specification: Product name: Extra large Material: ABS material Applicable models: Most models are applicable Applicable cup type: within 105mm diameter of the cup mouth Color: Black Product size: as shown in figure Base size: The diameter of the telescopic base is 65100mm / 2.6*3.9in Packing List: 1 * Car Cup Holder Thank you for your attention, There are so many useful and cheap item in our store. we will be ready to reply you ASAP.