... , Tracks Place of Origin: China (Mainland) Model Number:LSJD2500WL single or double track Remote Control Electric Curtain System, Motorized Drape, Motorized Drapery ... available: (Standard Length as follows)- 1. 0—2.0 Meters (1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0) - 2. ... 0—3.0 Meters (2.1,2.2, ... .0)- 4. 0—6.6 Meters (4.1,4.4,4.7,5.0,5.2,5.4,5.8,6 ...