The Tri-Max is the only surveying grade tripod with certified accuracy, and is highly recommended for all servo driven and robotic total stations, 3-D laser scanners or construction lasers. The revolutionary design of this tripod series means this tripod will meet ISO standard (12858-2-H) right out of the box, and after years of field use. It features a 6-5/8-inch Flat head with large center hole (2-5/8 inch) to facilitate an easy set-up over a point. A retaining system which prevents leg kick out and accidental falls on slick surfaces is stored on the inside of the leg and can be left in place when the tripod is not in use. The Trip-Max can handle equipment up to 65lbs, and extends up to 71inches in height.