With iCraft, you will love the smooth mixability and high vibrancy the fine art assorted kit brings with it. The letter moulds are big and deep, very good quality, durable So many possibilities, it would be a lot of room to be creative. Perfect for making keychains as a gift to kids and friends. Come out with good sharp edges. Our upgraded silicone moulds are a little bit thinner than others, thus make it a perfect mould for those small keychains, these keychains are more precise than others and you will see the good sharp edges of them.