Double Slider Zips
Black Double Slider (DS) Zips are fitted to some cages.
Two sliders are arranged so that they are facing each other on one zip track. When pushed together the join is very tight with negligible gap. Yet when opened, the sliders provide a small or large opening at any position, so it is possible to :-
    - Easily put in or take out individual insects,
    - Change plants or flowers.
    - Use a camera through the zip, at any position near the zipline. The lens alone may be placed in the opening, and flash, if used, can be through the net. Alternatively the whole camera may be inserted, and the DS zip closed over the wrist to prevent insect escape.