The Winbag Air Wedge Shim / Levelling Tool is a heavy-duty fitting tool designed for door and window installations. Made in Denmark, this black tool features an air pump mechanism that can hold up to 135kg of weight, providing stability and support during the fitting process. The innovative design allows for precise levelling and alignment, ensuring a secure and professional finish to any DIY project. Perfect for use in various home improvement tasks, the Winbag Air Wedge Shim is a reliable and efficient tool for achieving smooth and accurate results