This is the Manfrotto 1051BAC-3 Alu Baby Air Cushioned Light Stand Pack of 3. With a patented Quick Stack System (QSS), ease of transport is optimized. Connecting the stands together saves a lot of room while storing them in the studio or in a location case.
The 1051BAC is an updated version of the "Stacker" stand.
Lightweight Location Stand
Rises to a maximum height of 6.75' (2 m)
Can hold up to 8.8 lbs (4kg)
Prevents damage to equipment or injury to fingers if you forget to fully tighten section locks