Abstract: A. track assembly includes two or more track sections (10, 11) the ends of which are inserted into a connecting sleeve (1). The shapes of the track sections and connecting sleeve match to enable easy sliding insertion, and they feature a continuous longitudinal slot (2, 12) in both the track sections and the connector sleeve to receive a guided element. The ends of the track sections are formed with a slot (15) and stop (17), and holes (7, 8) are provided symmetrically of a centre position (9) of the sleeve. Tines (21, 22) of a clip (20) are inserted through holes (7, 8) and engage in slots (15), to hold the ends of the track sections in place, and the clip (20) is retained by a resilient tongue (23) which engages the top of the sleeve.