A simple and effective Safety Lock / Restrictor for Tilt or Casement Windows. This model is designed to prevent the window from fully opening, increasing safety and ventilation control.

The lock simply clips onto the window frame and the window sash, holding the window securely in a partially open position. It is easy to remove when full opening is desired. Great for child safety or to prevent accidental slamming.

It should be printed without supports, laying flat on the bed."