Hello, snap on or clip on veneers are not a standard form of treatment. - If you want to get veneers done, for making your smile esthetically more pleasant,first of all visit a Prosthodontist. -Prosthodontists are specialists who are qualified to do veneers. -They would do a proper checkup,see your bite (how your upper and lower teeth meet when you close your mouth),see your smile window and elicit how many teeth are visible while smiling, talking etc. Based on above data they will guide you with the rest of the treatment. -Snap on smile or clip on things are only gimmicky products sold on online platforms.