The L4X Motorized DSLR Dolly from YELANGU, in black with orange accents, runs on a flat surface and can make straight, curved, or 360° circular moves. This dolly is designed to work with DSLR and mirrorless cameras weighing up to 6.6 pounds. It includes a reversible 1/4"-20 to 3/8"-16 threaded stud mount for your camera or ball head, and can support smartphones with a separately available Smartphone clamp. Dolly features include three selectable speeds, direct control, and an included remote control with a range of up to 19'.

The L4X dolly's compound wheels will work on flat surfaces and are compatible with most 31.5 to 47" slider tracks. The adjustable wheelbase enables the dolly to ride on slider tracks with varying distances between the rails. You can adjust the angles of two of the wheels to create circular moves, and these angles are indexed for repeatability. The L4X dolly has both 1/4"-20 and 3/8"-16 threads for mounting a pan head or accessories. It comes with the reversible camera stud, the remote controller, a USB charging cable, a spare O-ring, and an Allen key.