Caravan Hylander 400 window openerby
Cor ten hoor
Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3759648.
Ours were broken. Use these to keep your caravan windows open.
place them from above around the thick tube and turn a quarter turn at the end to secure it on the tube.
you also need an M6 20 mm hex bolt and nut