What is the opinion of Reddit about the
LapGear Home Office Pro Lap Desk with Wrist Rest, Mouse Pad, and Phone Holder – Black Carbon – Fits Up to 15.6 Inch Laptops – Style No. 91498?

Well it comes with a magnetic foam pad but I’m using my lap desk thing for laptops because it has a built in wrist pad for the keyboard. Here’s a link to the amazon page where I got it: https://www.amazon.com/dp/B017EVRZG4/ref=cm_sw_r_cp_api_dqYaybG9F1QGM

Edit: I thought you meant what I was using to secure my Lapdog. As the other guy said the Lapdog by Corsair is what I’m using to actually mount my keyboard and put my mouse on

I went with a XL Lapdesk it fits the 17R4 and there is a nice slot to hold cell phone as well. Only complaint is the beans in the bottom pads wear out quick.

LapGear XL Deluxe Laptop LapDesk 91498 Black Carbon https://www.amazon.com/dp/B017EVRZG4/ref=cm_sw_r_cp_tai_dsS6ybM5473W6

I have one of these and love it-

https://www.amazon.com/dp/B017EVRZG4/ref=psdc_490924011_t3_B002WER27Q

Not foldable so not sure if it will meet your needs. I use it with a 17″ laptop and mouse. I have full range of motion with the mouse and the trackpad works very well. The pillows on the bottom are comfortable and I really like the little slot on the top right where I keep my phone and two flash drives.

I use this one and it fits fine
https://www.amazon.co.uk/LapGear-XL-Deluxe-Laptop-LapDesk/dp/B017EVRZG4/ref=sr_1_2?s=computers&ie=UTF8&qid=1496404734&sr=1-2&keywords=Xl+lapdesk

https://www.amazon.com/dp/B017EVRZG4/ref=psdc_490924011_t2_B002WER27Q

That’s actually how I did it before i got the Lapdog. Here’s the one I used: https://www.amazon.com/dp/B017EVRZG4/ref=cm_sw_r_cp_api_dqYaybG9F1QGM