This product is an M-size, suction-cup cat spaceship bed. The strong suction cups allow it to be securely attached to smooth surfaces such as glass and tile. The dimensions are: length 40cm, width 40cm, height 17cm. *All dimensions are approximate. The suction power may vary depending on the material and condition of the installation surface. Please be aware of this. Weight capacity: approximately 30KG. Stress relief. Easy to assemble. Japanese instruction manual included.