The Philip Bloom Signature Series Pocket Dolly is a hybrid slider that combines the lightweight portable rail & carriage system of our standard Pocket Dolly with the adjustable arc diameter handle and drag control of our CineSlider. Features include drag control and locking, handle with adjustable arc diameter for ultimate movement control, smooth rolling precision stainless steel ball bearing wheels, and multple mounting options.The Philip Bloom Signature Series Pocket Dolly is smoother than other linear sliders due to our ball bearing wheel design. Plus, with the belt drive you have the option to go to full automation with our elektraDRIVE system that boasts features like time lapse, memory/motion playback, digital dampening and many more options that will make getting that perfect shot easy.