Pack of 7 Thikas plastic molds for use with Crepla Rubber (Fommy, Foam, Eva Rubber, Mousse, Moosgummi), Plain and Glitter Velvet, Primette Fabric, Ecofelt, Stardust Glitter Felt, Eco Nappa Leather. With these molds you can create three-dimensional letters to insert into creative projects. Instructions for use: Heat your material using an iron or a plate. Place the heated material between the two molds. Press the two molds together and hold the pressure for a few seconds. Remove the material from the molds, which will now have the desired shape. Proceed to make your creation using hot glue or specific glues based on the materials used.