Made by cutting floor material. I sanded it, so I think there are few splinters. The spacing can be adjusted freely as it is just threaded with rope. Please check the photos for scratches and stains as it is a handmade item. As shown in the photo, it is floor material, so it can be fitted and attached. Size: One piece approximately 150mm x 300mm Thickness: 18mm Weight: 490 grams There are a total of 20 pieces. Individual sales are also possible.