The AT600 from AXRTEC is a twin tube 2-stage tripod with 75mm bowl base.Features 88.2lbs weight capacity and extends from a minimum height of 26.0" to a maximum height of 58.7" when you use an included middle spreader .The dual spikes at the end of each leg provide extra grip when working on softer ground, and you can snap rubber feet onto the dual spikes for better grip when working on hard or delicate surfaces.Each leg has ergonomic twist locks. Additional features a hook on one of the legs for easy storage.