From Inkadinkado, Valentine Party Invite Cling Stamps create perfect handcrafted cards, gifts, decorations and more. Rubber stamps that cling feature the best of both worlds: the quality impression of red rubber stamps with the convenience and precision of clear stamps. Sticks to clear acrylic mounting block without adhesive (sold separately). Includes 6 pieces. Stamp release sheet 4-inches-by-6-inches.