We needed labels that were color laser compatible (for our office printers) but also with a strong enough adhesive that they would be "permanent" on the industrial machinery we work with. Online Labels provided the best value and a very high quality product!! We also use these as "sticker" giveaways to customers and in our promo packs-- some customers stick them on their machines as a "reminder" of our phone number (we are a service company) so that we can be contacted in emergencies--PERFECT!
We set the printer properties to "cardstock" in order to get the laser temperature high enough to have the toner 'stick' to the thick sticker paper-- at first just printing as normal results in a "flakiness" and the image scratches off--NOT GOOD!