EZ Shim 3-1/2 In. Quick Align Plastic Hinge Shim is designed to assist in aligning doors quickly and easily within the door jamb. Made from high-impact plastic, these shims are sturdy and durable, ensuring they will not compress under pressure. This makes them an i tool for achieving precise and accurate door alignment, helping to eliminate gaps and ensure smooth door operation. Whether you are installing a new door or making adjustments to an existing one, the EZ Shim Quick Align Plastic Hinge Shim provides a valuable solution for achieving the fit. Model Number: HS350BP