House-elves are magical creatures known for their small stature, large ears, and big, expressive eyes. They possess powerful magic that allows them to perform tasks without the need for wands. House-elves are typically bound to serve a wizarding family, often taking on household chores and responsibilities. They are known for their loyalty and dedication to their masters. House-elves have a unique culture and often wear simple clothing, such as pillowcases, as a symbol of their servitude. They can be freed if their masters willingly give them clothes. Notable house-elves include Dobby and Kreacher, who play significant roles in the Harry Potter series.