【Secures against jolts and firmly rejects】The new and improved car cup holder has an ABS plastic blade at the bottom that allows the car mount to be securely fixed in the car's slot, so it can be placed securelystable without shaking. If the original groove of the cup and the base of the cup holder still have gaps, you can fill it with a sponge pad to absorb vibrations and stabilize the cup holder. 【Extra Space Fits Most Cups】The double cup holder provides extra space for items without taking up the original cup holder. You can place your drinks, food, electronics, etc., perfectFor most cups, such as kettles, coffee cups and fried chicken buckets, effectively improve usable space in the car. 【Easy to Use and 2-in-1 Car Cup Holder】Easy to install and use, the top and bottom of the car cup extender can be easily rotated using the knob, and the car cup holder can be easily removed fromThe slot. The position of the car cup extender can be moved and adjusted to fit the car's space. A car cup holder has two cup slots. By rotating the cup holder's stem, one cup slot becomes two. 【Applicable Size】 The car cup holder is large enough to hold everyday bottles; the adapter works best with lightweight bottles/cups/bowls from 3 to 6 inches in diameter. The top holder can hold up to 600ml, bottled instant noodles, fries. The lower cup holder is suitable for coffee cups, slim bottles, up to 500 ml. 【High-Quality Material】The car cup insert is made of strong and thick ABS material, which is not easily broken during daily use. The rubber sleeve around the top of the cup holder securely holds the cup in place.The button for adjusting the size can be used smoothly and effectively.