Extending Laser Level 12 inch Length Surveying Tripod Pole, Extending Section pole Antenna For Line Laser Rotating GPS GNSS RTK surveying prism Material Aluminum Color Yellow Size: 12 inches Aluminum Pole Extension has 5/8 x 11 Female Threads at the bottom of the rod Aluminum Pole Extension has 5/8 x 11 Male Threads at the top of the rod Aluminum pole outer diameter Extensions is 1 inch Light weight as it Weighs just (0.16 kg).Easy to carry and store. Aluminum antenna rod Extensions is 1 feet (12 inches) in Length