Compléter If at first you don't succeed - 3Version en ligne Fill in the blanks. par Maryam Aflaki Jalali 1 more anyone lots all any Cellhelmet is a product that protects screens on cell phones . The product is made for almost kind of smart phone , and it comes with a guarantee that if the screen gets scratched , it will be replaced . The company also produces screens made out of tempered glass , which is the kind of glass that car windshields are made out of ? glass that shatters , but does not break . This is great for who breaks their phones' screens a lot ? tempered glass means that the glass won't break into of tiny pieces , and you won't cut your fingers on the screen if it shatters . Mike Kane and David Artuso , the co - founders of Cellhelmet , say that their business has picked up since their appearance on " Shark Tank . ' They walked away from the show without the investment they wanted in their business , but they have been doing really well since then . Before the show , they had only sold 1 , 300 screen protectors online ; they sold 1300 units online in the 24 hours after the show aired .