Libec DL-2RB (DL2RB) Dolly for TH-650HD / ALX Kit. The Libec DL-2RB Dolly is for use with the TH-650HD tripod and ALX Kit. With a payload of 15kg, this dolly is perfect for those smooth tracking shots. Constructed from Aluminium. Featuring a carrying handle and is foldable for transport and storage convenience.