The product is a 1/12 spiral staircase kit suitable for any room in a doll's house. 3D printed to replicate a cast iron staircase, this miniature staircase is perfect for adding a realistic touch to the interior design of a dollhouse. Ideal for creating a detailed and immersive environment for dolls and bears to inhabit, this spiral staircase kit enhances the overall aesthetic of the miniature setting. The 1/12 scale height can be adjusted up to 315mm and has a diameter of 105mm. The 1/12 scale extension kit adds an extra 150mm to the height of the stairs. this is a kit that needs to be assembled (instructions supplied)