Let your cat watch the outside world from the safety of your window with JOYCAT Acrylic Space Bowl Cat Bed.. Your cat is bound to love the acrylic bowl attached to any window or tile surface by suction cups. Choose the size suitable for your cat and watch them sunbathe and watch the world go by!. Size:. Small: 40*40*15cm. Acrylic Bowl dimension: 30cm diameter. Suitable for cats up to 20kg.. Large: 47*45*18cm. Acrylic Bowl dimension: 35cm diameter. Suitable for cats up to 30kg.. Follow the steps below to restore the suction power of the suction cup:. If it is suctioned on the glass, clean the glass with toothpaste, scald the suction cup with 100-degree boiling water for 1 minute, dip the suction cup in some water and suck it up, press it tightly, and use it after it stops slipping after a while (slipping means too much water).