As with all buttons, you should regularly inspect buttons to ensure that they are well attached to your garment.
Buttons by Benji buttons are non-toxic, however they should not be chewed or sucked by babies or toddlers. Like all small objects, unattached buttons are a choking hazard to small children. Do not allow children to chew on buttons as their sharp little teeth can bite through the cotton and detach the button. If you are unsure, wait until children are older before leaving them unattended with buttons that they can chew.
Hand or machine wash your buttons, preferably using a gentle cycle. Do not dryclean.
Buttons by Benji buttons are not designed for high stress use such as closing jeans after too many Easter eggs! They will become slightly softer if exposed to high heat, which may make them vulnerable to damage, but they will harden perfectly once heat is removed. For this reason drying in a dryer is not recommended.
Buttons have a one year warranty, however I have buttons that are years old and have been washed more than 100 times, and they look as good as new. You can expect buttons to last much longer than one year with normal use and care.
Here are some before and after pictures of buttons that have been washing numerous times. Click on a photo to see it up close and clearer.