The Kessler Crane Pocket Dolly 3 BASIC Standard is a 38″ entry-level camera slider featuring a roller-bearing slide system. It supports up to 15 lb loads and delivers quiet, consistent, and smooth camera movement along a travel length of 31″. Designed with upgrades over its predecessor model, Pocket Dolly 3 BASIC Standard incorporates a cart brake and provides many threaded mounting options on the end blocks.The Pocket Dolly 3 BASIC Standard can be used on flat surfaces or mounted on a tripod via 1/4″-20 and 3/8″-16 mounting threads on the bottom. The slider carriage provides threaded 1/4″-20 and 3/8″-16 mounting holes for attaching accessories, and the integrated cart brake allows you to lock down the carriage for static shots or to prevent back-and-forth movement in transport. The Pocket Dolly 3 BASIC Standard is built as solidly and reliably as all other Kessler products.