Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: I don't understand how you adjust the angle of this.  It says adjustable from 0-89%.  Can someone explain this?
Document: This support is perfect for someone using an iPad in bed or a recliner- in this case, while recovering from surgery. It securely holds the iPad and is easily adjustable for the right angle, while having no parts to adjust. The pocket holds an iPad for transport and it's easy to clean and set up.
I was at a lost when I opened myRenegade Concepts: LAP PRO - Stand/Caddy, Universal Beanbag Lap Stand for iPad 1,2,3 & all Tablets, E-Readers, Books & Magazines - Bed, Couch, Travel - Adjustable Angle; 0 - 89 deg. (Black). There was no directions on how to use it.But after contemplating if I should send it back or just use it as a pillow I finally figured it out.
I came across this wonderful product just in time. Since January of 2012  I have been recovering from a broken arm and shoulder surgery. Reading became painful and awkward. I have configured any number of unsatisfactory solutions then I discovered this perfect solution on Amazon.Renegade Concepts: LAP PRO - Stand/Caddy, Universal Lap Stand for iPad & all Tablets, E-Readers, Books & Magazines - Bed, Couch, Travel - Adjustable Angle; 0 - 89 deg.
I bought this for my fiance, who loves to watch shows in bed before he goes to sleep. He loves it! Using it every night, he says that it's perfect for watching full-screen shows/movies. The bar that holds the ipad in place, does cover up some video controls, but just adjust it and you're good to go.
I don't get the appeal of this thing. The stand at the bottom is so flimsy, the ipad falls out every time you move just a bit. It is really hard to get the viewing angle right. I just don't understand this product.
I love this! It is perfect on my lap and is adjustable to the perfect angle to work or simply watch. It is very well thought out. I love it! Oh, and it also has a place to put my iPad inside, along with all accessories. Brilliant!
I bot 2 different adjustable tablet stands, and this is by far the better stand. It adjusts to just about any position, even sitting in my easy chair and surfing the net with my feet up. I'm sure i will be able to use it in bed as well, and sitting on a table it adjusts to any angle you need. Would buy again.
This is lightweight and easy to adjust to any reading angle. I especially like for reading in bed. Only criticism is it comes off stand easily on bottom so must reposition frequently
Needed something to hold my IPad while in bed, I couldn't be happier, you can adjust the angle, it holds it horizontal and vertical, I am very pleased, I would highly recommend this for anyone looking for similar usage! :)
The product is described as an iPad stand or caddy, but really I would call it an iPad pillow - and it is just perfect! It was exactly what I was looking for. I use it when I'm sitting on the couch, when I'm laying in bed, and at night as a charging station. It is described as adjustable, which means you can sort of "mush" it around to change the angle of the iPad. It easily accommodates portrait or landscape mode.
Answer: The Lap Pro is designed to be angled by rocking the whole unit up or down with the device in the trough. Place your device in the trough (between the handle and the chassis) and then roll the entire unit away from you make your device face flatter towards the ceiling or towards you to make it face you more. Because it is a beanbag it will hold the position. Your device will never be flat in your lap because the Lap Pro itself is not flat. These instructions were stated in the products description on the selling page here on Amazon. We hope this answers your questions and hope you are pleased with your purchase. -RC-