Add the finishing touch to your papercrafts by sealing envelopes with these Marble Seals by Recollections. Perfect for wedding invites, birthday and greeting cards, you can use these seals that are recommended to enclose your inner envelopes only. Place an outer envelope over the faux wax sealed envelope to protect your invitation or greeting card. This will prevent the postal items from getting caught in a postal machine. If using the faux wax seal on an outer envelope, the postal items must be hand-canceled at the post office counter. Details: White and gray 40 seals PVC and foam