1.) Do I have Red Gator Grip, No. I used to carry red but, it tended to fade to pink. I Would rather have a good representation of Gator Grip out there than people thinking that it fades. My experience has shown that reds and yellows tend to fade.
2.) Gator Grip comes with sticky back. Gator Grip sticks really well to any clean smooth surface.
3.) Difficulty in removing. It will come off but, requires some work to get the sticky back off. Do not try to clean with Acetone or anything else until all the sticky back material has been removed and the only thing remaining is glue. Then use Acetone.
4.) The material is a closed cell foam so, it's not rubber but, more like thick pliable foam. It's about 1/4 thick at the bubbles and about 1/8 thick at the base.
With regards to Amazon. It all comes from the same place, just different markets. They have the "Bathroom" colors and most are out of stock. Whereas, I have everything in stock. Plus I have longer lengths.
Get the Grip you Deserve www.wakejunky.com