Great Product for Teaching Kids about Dental Hygiene
There have been complaints about a lack of instructions - the package I received did have instructions, you  just have to look closely.  The instructions are printed in white directly on the clear packing, but they're there.  And the tablets did exactly what I hoped... showed my sons that after they brushed there was still plenty of plaque left on their teeth.  They're now brushing more carefully.<br /><br />As for staining, I have a cream colored sink and there was no staining.  I did make sure to rinse the sink immediately when the boys spit, and checked it after they were done to make sure there were no drops of bluish-purple left when we got done, but it was no problem.  As long as you're not spitting all over the room you should be fine.
Rating: 5 stars