Chunky hanging guy, hang in any window! Full sun is not a necessity, North facing is fine providing the plant is in full view of the light. Will bloom with beautiful orange flowers with enough sun & water in summer.
Give a full soak (overnight is best) once a month during summer. In winter, keep dry between October and March. Cacti will hibernate through the winter, so any additional moisture will encourage rot and is bad!
Pot size 14cm, hanger clips off if not needed.