These are the perfect size so you can wear all day with comfort. I have sold these to several Movie producers for there cast. You can speak and Drink with no Slurring or dripping ( Unless you want too. ) Great for any Animal costumes, Vampires, Etc...These are thermal molded plastic teeth.Will Fit ages 16yrs & up Exact Details are included with Hand drawn pictures to guide you. All you will need is Boiling water and salad oil... These are NOT just simple fangs..These will last for years..If your teeth shift just dip in Hot water for a second and 1/2 and reapply to get proper fit. They Snap in and out with ease. If you want to have a FUN project with the family this is it..The Women's also fit children ages 9 and up. Can be used for School Plays, Making Costumes , Masks,pottery.etc.. People can Not tell they are not real from 10 inches away !!