This listing is for our seat lowering base set. 
We have a lot of questions regarding if it will work with a 800/900 model RZR.
This seat lowering base will work with a 1000 seat placed in an 800/900 model. 
YOU WILL HAVE TO USE THE 1000 SLIDER IN ORDER FOR THE SLIDE TO WORK, IT WILL NOT WORK WITH THE 800/900 SLIDER.
It WILL NOT work with the factory 800/900 seats. 
Powder Coated Black. 
-Easier to Install-Uses Stock Slider-Slider Plate integrated -Harness 5th Point Mount -Lowers 2” -Reclines 5.2 degrees