This B&H Kit provides you a support vest and heavy duty arm that supports cameras that weigh up to ten pounds when used with the included camera stabilizer sled. It includes a VariZoom Navigator Vest with Heavy-Duty Arm and a Glidecam XR-4000 camera stabilizer. The Glidecam XR-4000 is a camera stabilizer that supports cameras that weigh from 4 to 10 pounds, features a telescoping center column, and includes counterweight discs. The Navigator vest and heavy duty arm relieves the weight of the camera from your arm and distributes it to your hips and torso. This helps you avoid getting fatigued during the shoot day.