They are made from silicone to withstand temperatures and provide durability and deformation resistance during casting resin or gypsum Versatile for Valentine's Day, Birthday, Wedding or any other occasion, unique home decor item to add warmth and charm to any living space The non-stick surface and collapsible design make it easy to clean and store, the silicone is a great addition to any craft supplies collection Perfect for both beginners and experienced crafters and great for family bonding activities and get-togethers, encouraging interactive experiences for all ages This Valentine silicone with words "HOME" and heart, allows you to personalize your gift for creative projects and solves your creativity in a fun and attractive way