These are the CONNECTABLE 73.8’ 1,000 warm white light strands. You would want the connectivity if you are doing a long stairwell with a garland or a big archway. I do not use the connectable ones in my trees. You might also need them if your tree is taller than 10 feet. There aren’t a lot of these, so if you want this feature, grab it now. LTKhome LTKunder100 LTKSeasonal