I use clean and easy.You can buy packs of different size rollerheads.They are cleaned after each client from a hygiene point of view.You can get roller head cleaner.As i dont do that many waxes a day i chuck what ive used over the day in a pyrex bowl pour boiling water on them let them soak , cool a bit and wipe over with the antiseptic rollerhead cleaner.They are as good as new.If you are charging enough you can just chuck them away after each use but thats quite expensive.