GTR Simulator Gaming Keyboard and Mouse Tray Add-on for GTA/GTSF Model - Perfect for Racing Simulator Setups & PC Gaming Stations

I am giving 4 stars to this product. The item was ordered with the GTR STA Simulator rig. It came well packed and the shipping was fast. No directions were given in the box, but it was easy to figure out. You just replace the two rails under the seat (The ones that attach the seat to the rig.)Reason for 4 Stars are this:1. No Directions2. The "Couplings" that hold the poles together and screw to tighten were kind of cheap. One was installed on the pole and a second one was in the box and came with one of the 3 "tabs" broke, which won't allow the coupling to tighten around the pole.3. Keyboard Shelf is Very Small. Even an old normal keyboard is too big for it let alone a full-size gaming keyboard.One nice thing is they now include "Hook & Loop aka Velcro" with the add-on so you can stick it on the keyboard to hold it in place.While the idea is nice, this addon would not work for me. I have the Shifter on one side and the other side it was making it hard to get in and out of the rig, and I just didn't fit naturally. I do hope the Manufacturer comes up with another idea for a keyboard self for the GTA units.I have asked for a refund as 1. The Second Coupling was broke, and 2. because I don't fit with my set up.