I purchased two on the small dividers to improve the usability of my Hadley Small Pro. They replaced the two standard issues tall dividers. The bag is now far more convenient to use with longer lenses. Perfect fit for Sony a7c, Sony 28-60mm and Tamron 50-300mm or any 70-300mm The folding divider allows the camera to be stored in the bag with longer lens fitted as the divider folds over the top of the small lens. I think it would be a much better option if billingham supplied this bag with these type of dividers fitted as standard. The quality is outstanding and I now use this bag far more than any other now it is a more workable system.