The Pro-Stix Carbon Fiber Series Tripods are designed and built for the professional videographer or photographer looking for the toughest and most rugged tripod. The apex features an interchangeable flat plate that can be removed and transitioned to various accessories. It includes a safety lock button that won't allow the plate to fall out of the apex prematurely without depressing the release. The apex plate has a 3/8-16 standard mounting thread for Ball Heads, Video Heads, Gimbals, Sliders, and much more. The carbon fiber legs have 3 adjustable locking angle positions to accommodate any shooting situation, high to low. Each tripod foot has a hardened stainless-steel spike integrated inside the tube. They are precision CNC machined in our factory located in Tinley Park, IL USA.