Available from our North American website at https://www.firgelliauto.com/collections/slide-rails 

Our line of Linear slide rails are precision-engineered, built to last and we offer the largest inventory, all ready to ship the same day to you. They include sealed bearings with hardened steel rails for long life, superior gliding and low friction, and heavy duty, capable of holding the heaviest of jobs. Coupled with a Linear Actuator and you have yourself a complete Automated trouble free system.