Shopping website Amazon has stopped selling hoverboards because they're worried some of the boards for sale are unsafe.
They've also emailed customers who have already bought hoverboards, also known as self-balancing scooters, to ask them to throw the gadgets away.
It's because there are worries that some of the hoverboards on sale could have parts in them which catch fire.
Argos and John Lewis have also reportedly stopped selling them.
Trading Standards, who aim to make sure that products for sale are safe, say that people should read their safety checklist to make sure they're not buying a dangerous product.
If you're worried about the safety of your hoverboard the advice is:
- don't leave it charging unless someone's watching
- check the shape of the plug - if it doesn't look right it might not be safe
- if you have any problems or worries with your hoverboard let an adult know so they can check