This Calumet exclusive package features one Pico Dolly plus two different Calumet Articulating Arms with Shoe Mount, one extending to 4.2" and the other to an 8.3" length. The combined components allow for adjustable low shooting angles and smooth tracking for both still and video cameras. Pico DollyThe Pico Dolly is an affordable solution to give you a stable video camera platform for smooth tracking shots. The base and axels are made of aluminum and the wheels feature high quality ball bearings for smooth video. With the three 1/4-20 female thread positions you're able to attach accessories such as articulated arms, ballheads, and various mounts to customize the dolly to fit your needs. The wheels are mounted to adjustable axels which can be pivoted so the dolly can travel either straight or in circles. When using optional ballheads or camera mounts (each sold separately) the Pico Dolly can support smart phones, small camcorders, action cameras, mirror-less cameras, and DSLRs.Calumet Articulating Arm with Shoe MountPackage contains one unit extending to 4.2” (10.7cm), and one unit extending to 8.3” (21.1cm).This durable, compact articulating arm allows mounting of a portable LCD monitor or compact LED light source directly to the camera hot shoe mount. It features a triple-jointed arm and a single point locking knob, which allows for quick-and-easy adjustment control for on-camera accessories. The unlimited mounting capability is what makes this articulating arm so versatile. Simply remove the shoe adapter for even more mounting possibilities. A 1/4”-20 female bushing is included, allowing you to mount the arm directly to a light stand or other grip equipment.