Sirui Professional Bct-2203 Video Tripods are built to handle the rigors of studio and field use: Multi-tube design provides increased stability and vibration reduction Precision built aluminum spiders are lightweight, yet offer superior load capacity Oversized leg locks provide fast, easy adjustments - even when working with gloves 10 Layer 100% Carbon Fiber legs for light weight and enhanced vibration reduction Includes adjustable ground and center spreader, dual stainless steel spikes for use outdoors and rubber feet for use on stone or wooden surfaces For video heads with 75mm ball.