Product Note: The SECO Aluminum Tripod with Square Legs Quick Clamp extends up to 64 inches (1.60m) perfect for all kinds of construction jobs. It is composed of aluminum square legs and equipped with square outer dowels for a more secure lock. This tripod features a quick clamp lock type and a triangular flat head suitable 5/8 x 11 threaded instruments. Weighing only 9.70 pounds, this tripod is a fundamental tool for all surveying applications.