This B&H Kit provides you a support vest and heavy duty arm that supports cameras that weigh up to 10 pounds when used with the included camera stabilizer sled. It includes a Varizoom Navigator Vest with Heavy-Duty Arm and a Glidecam HD4000 camera stabilizer. The Glidecam HD4000 is a camera stabilizer that supports cameras that weigh from 4 to 10 pounds. The vest and arm takes 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.