Astera accessory to transform the lighting control output for your Helios Tube hires. This Astera Snapbag fits 3 Helios Tubes. Together the Snapbag and tubes are extremely lightweight, making them an easily transportable option. We also include Airline Track and TrackPin, making mounting simple. Made to give filmmakers maximum control of their lighting, the benefits of these premiere, softboxes include, intensified output, adjustable beam spread, simplified pack-up, and easy track mounting system. This softbox is ideal for photoshoots and film work.