The 3-section legs are secured via twist locks and extend to a maximum height of 179 cm. 
 
Specifications
General
Load Capacity    16 kg
Maximum Working Height    179.1 cm
Max Height without Centre Column    149.6 cm
Minimum Working Height    40.9 cm
Folded Length    68.1 cm
Head Mount Type    3/8"-16 Screw
Weight    2.4 kg
Materials    Aluminium Alloy

Legs
Leg Lock Type    Twist Lock
Independent Leg Spread    Yes
Leg Sections    3
Tripod Feet Features    Spiked, Retractable

Centre Column
Centre Column Features    Removable
Centre Column Sections    1
Centre Column Extension Type    Rapid
Lateral / 90-Degree Centre Column    No