A double-slide type that combines two units of model FBL 35S front-to-front. Releasing the automatic free disconnection spring attached on the inner rail allows the inner rail to be pulled out. When folded, the locked state with the disconnect spring can automatically be released with force above a certain level in the folding direction. It is also equipped with a pull-lock mechanism that functions when the slide rail is fully extended. More detailed specifications are available in our digital catalog.