Each 'clamp' is supplied as a flat piece of aluminium measuring 4 inches (10cm). The aluminium is flexible enough to allow you to bend the 'clamp' to suit your requirements whilst retaining its shape.
Use the 7/16 inch (11mm) cropped head bolts and nuts supplied to fit through the holes of the 'clamp' & slot into the glazing bars of an aluminium greenhouse - for wooden greenhouses substitute the bolts and nuts with washers and woodscrews (not supplied).
Supplied as a pack of 10.
to download Gardena's useful free water planner.