I would not recommend this Cup Holder Insert
586781
It literally breaks each time I use it. I would not recommend this Cup Holder Insert.
3196556
My basic problem with this unit was that it didn't fit any of the cup holders in my 2015 Tundra truck.  The construction didn't allow for expanding the insert.  I would have to jury-rig it by wrapping a few yards of duct tape around the insert to get it to fit tightly enough to hold the tray in position.  If I was to do that it seems like the unit would work for lighter objects.  I would worry that something as heavy as a smartphone would cause the unit to wobble enough to slip the arm out of its cuffs and topple.  If the vehicle wasn't moving it might be OK.  I would only recommend this if your cup holders were more "standard" than mine and if you were only going to put light objects on the tray during transit.
743797
This cup holder isn't very adjustable. It has a few different sizes but it only goes straight up and down. Three out of four of my cars cup holders are at an angle and this cupholder makes my hydro flask topple right over. Very disappointing.
3321352
The edge of three of the sides of the top tray are strong enough, but the one side with a built in cup holder, because of the cup holder, is very weak and sags.  This in turn makes the top not flat and everything you put on it wants to roll off.  Brainless design, they should know better.
1093248
Guess I should've measured my 2008 Honda Accords cup holders. Even with adjusting it all the way out, the mount is still loose inside the cup holder. I'll attempt to remedy this situation with decreasing the diameter of my cup holder so it will fit the way it was intended to fit.

Update 3/7/2018 after owning this for several weeks my opinion of it has changed from bad to worse. Cheaply made, easily breaks, low quality. I would keep shopping if I were you.
1586877
Product worked as advertised, but all my cup holders are busy holding cups, and just nowhere else to place it. When in place I kept bumping into it , Maybe I'll revisit it in the future. Uh-huh
2606395
The only thing that I did not like about this cup holder is that you need to have an insert to keep the drink from falling out the bottom when riding.
4496595
I purchased this because my car has no cup holder.  In the picture, the organizer is divided into 3 compartments, so that a cup would stand up in each.  The actual product has no dividers.  I have tried to make one so that I can still use it on the passenger seat as a cup holder.  It is also a pain to have to detach the strap around the seat to remove it every time I have a passenger in the car, but the main problem is that it does NOT have dividers as shown in the picture -- your cup will fall over unless you stuff the rest of the space around the cup with some filler.
4625825
The cup absorbs the soapy chemicals of the dishwasher, so I have to just soak it in water. Also, the cap doesn't clearly 'click' when fitting it on, and today it popped off and hot coffee went all over the car.
2439187
Bought for my 2015 Tacoma. It fits where the rubber cup holders usually sit. I only had it two days before I accidentally set my cup on one of the hinged arms and the thing fell apart. It fell apart two more times in as many weeks. I guess I'll need to keep looking for a better cup holder option. I love my Tacoma but the cup holders are not designed for insulated mugs/cups.
3557011
Junk--the quality of the printed insert is awful, and it is not waterproof, let alone dishwasher safe.  I was disappointed in the quality of the insert when I gave it to my husband but he wanted it anyway.  After one trip in the top rack of the dishwasher, the water leaked in between the layers and ruined the cup.  I'm returning it, of course
271892
I don't undersand all the reviews, super plasticy, cheap, didn't fit my cup holder (2015 Hyundai Genesis)
611339
Way longer than the table I wanted to put it on. Didn't think of measuring it. Down side to this product is the cup holders all pop out but are nearly impossible to put back in. In trying to put them back in I broke the little plastic prongs so I then had to super glue the cup holders down
1183420
Did not fit my car at all. The cup holder is too shallow and if you have a cup that does not fit tightly, I the cup will tip over
84074
I bought these to sit in my cup holder and hold my water bottle. The keeper is too loose in the cup holder and not tight enough in the center to hold my water bottle steady.
1264013
It doesn't work well in my cup holder, it's constantly moving and tipping.... the spring to hold the phone (iPhone Plus) is kind of worthless. The phone pops off if you look at it too harshly. I tried it one day and will throw it away, and look at other options.
1890419
For all those people who drive around with a ceramic coffee cup, this is the product for you. This isn't for me. The images used are extremely deceptive. The fast food cup, looks to be the fairly common large diameter on top, but necked down to fit in a small cup holder. I purchased this product because when these things are full, they are top heavy and tip over when cornering or on bumpy roads. The photo seems to show the perfect extension to a cup holder. It's not. A Nalgene or insulate bottle like HydroFlask or Klean Kanteen won't fit into this cup holder and the bottom portion is merely used to fit in the vehicles cup holder. The 'well' doesn't extend into that portion. Worthless to me. Also, feels really cheap so even if it had worked, was going to be a compromise on what I'd expected for quality.