Transform your smile this Halloween with our Medium Instant Smile! Features faux teeth front for the top teeth. The teeth are "molded" to the size and shape of your real teeth by first heating the Instant Smile Teeth in hot water and then using thermal fitting beads for a more secure fit. We do not recommend using them for long term use (as dentures or a dental device) or to be used while eating or sleeping. One size fits most adults. Include 1 top tooth front per package.