The Kalanchoe is an underrated family of succulents, home to the 'Paddle Plant' and 'Mother of Millions' among so many really interesting others. Most can also live outdoors, and make a great patio or balcony friend!
This guy is the oricula, with dainty curved leaves, that really are like nothing we've ever seen! They are succulent, so need plenty of light, but full sun is not always a necessity.
When watering, wait until the compost has been bone dry for a number of days (weeks in winter) and then soak thoroughly.
Pot size 12cm.