Completely lubrication-free linear extendables in stroke lengths from 100mm to 600mm. The telescopic rails consists of anodised aluminium guide rails and a sliding block of the tried-and-tested iglidur® material. iglidur tribopolymers enable a dry operation in every application due to their compounded solid lubricants. One benefit of the telescopic rails - in addition to being maintenance-free - is that they can be safely used in clean hygienic environments. No oil or grease can be transferred to other products, clothing or persons. Even applications in cleanroom sluices have already been implemented with the help of telescopic rails. But the dry run also has its advantages in dirty environments. Dirt particles do not get stuck in the guide and are not compacted into a sticky mass. Optionally, all telescopic rails can be delivered with a grid in the start-middle-end position. Requirements by individually positioned indexing positions can be met with telescopic rails.