UPDATE 21 May 2026

• Add new variations that print on one side, with the shaft printed separately.
   

UPDATE 20 May 2026

• Increased the radius on the front part to reduce overhang issues during printing.
• Added an 8-hook variant.
• Added fillets to all edges.

This is a simple, robust window holder designed to replace fragile store-bought versions. It provides several fixed positions for ventilation while requiring installation holes only on the window frame, leaving the moving sash undamaged.

The model is available in 5-hook and 8-hook variants.