【Replacement Set for Cold Weather Protection】 (No individual sales) ※ Proceeds will support activities for protecting cats. ※ Shipped in simple packaging. --------------------------------------------------- 【Compatible BOX】 RV BOX600 Lid-hanging series Designed to fit the short side opening (one location). --------------------------------------------------- 【How to Install】 Please install according to the steps in the photos. Insert from the side without an opening. This minimizes gaps. --------------------------------------------------- 【Cost-Effective Purchase Method】 When purchasing the BOX, consider adding a replacement set to save on shipping costs. If adding to a BOX that already has cold weather protection, some installation will be required by the customer. --------------------------------------------------- Thank you for your understanding.