Also known as Parodia penicillata.
Provide full sun. Water thoroughly when the soil is bone dry. Keep dry and cool through winter, only water when the body becomes wrinkled/droopy. Shorter, wider pots are best for this cactus, avoid deep pots and definitely avoid pots with no drainage holes.
Although these look fuzzy, do not touch them.
I repeat, DO NOT touch pet/rub these. The glochids will stick to your skin and you WILL feel them.
Non-toxic to pets, every plant is unique; the one you get may vary from the one in the photos.
If this is a gift, add a card!