Thank you for viewing. All photos are included. This is a PVC inspection port from Kaida Baseboard Kogyo. Suitable for new construction sites, renovation projects, DIY, and hobbies. Can be used for interior and air conditioning inspections. The standard size is 200x200, for 9.5mm boards. There are 10 units available. The frame has retaining hardware for the lid, so it aligns with the wall. The inner lid uses calcium silicate board, so there's no need to make it from a board. A fall prevention string is attached to the back of the lid. If you're unsure about the product or its image, you can purchase one unit to check, and we can deduct the price later. The color is white. The list price is 2400 yen per unit, so it's a great deal. It's a very good value for sites that use many units. Shipping is free. We will carefully package the items for shipping. If you have any questions, please feel free to send a message from the comment section.