Aluminum stand. 4 sections, 3 risers. ø: 25, 22, 19, 16mm Leg ø: 19mm • The 'Stacker' series is yet another ingenious Manfrotto creation. Sturdy but lightweight stands whose legs cleverly fold flat. • You can even pack seven of our Stacker stands in the space of four equivalent products. • Maximize your equipment room or grip truck space with these innovative stacker stands. • A built-in latch lets you clip 2, 3, or 4 stands together; add a shoulder strap for easy carrying and the limit is merely what weight you can manage. • Threaded hole for strap.