Universal Modular Window & Door Stopper Set

Universal Modular Window & Door Stopper Set – Adjustable Fit, Dual-Hardness InsertsThis universal stopper is designed to fit most windows and doors, regardless of the gap between the floor and the bottom edge. The classic wedge shape ensures reliable grip and holds doors or windows securely in place. Included are two optional stiffening inserts in different hardness levels, allowing you to customize the rigidity and strength for any scenario—whether you need extra support for windows on a windy day or a softer fit where cushioning is desired. For best protection of surfaces from scuffs and abrasion, print the main stopper in flexible TPU, while the inserts should be printed in PETG for optimal stiffness and resilience. Now, with the addition of three dedicated print profiles—Soft, Medium, and Stiff—you can further tailor the stopper’s flexibility to your individual needs and the specific softness or hardness of your chosen TPU filament. Simply select the profile that matches your prefe