Window Clamp 38mm deep for Plexiglass window cover

This is a small clamp design to close off the window through which my extractor fan goes. A full video explains the details here: [tbc] Youtube tutorial: It simply attaches onto plexiglass using 3m tape strips:https://amzn.eu/d/aDF6TFPlike these ^^ no affiliate plexiglass to fit my window was:https://amzn.eu/d/cEcmTLPjust be careful its quite brittle - no affiliate