These hooks are especially intended when using a J rail or Galerie Rail. Such a rail is especially interesting at exhibitions and exhibitions because hanging and changing the piece of art is very easy from the ground.
With other rail systems, a staircase must be used to hang the wires and hooks in the rail and to remove or replace them from the rail. The hooks shown usually have a hook or clamp shape themselves.
You will see the load capacity listed for each part to indicate which hook best suits the weight of the object or objects you want to hang.