Martellato Chocolate Mould Block (28x) 25x25x18mm Playing with chocolate is given a new lease of life. With these fun chocolate moulds in the shape of a cube, you can not only play with chocolate by making the cubes but also play with the homemade chocolate cubes. Each mould is 25x25x18mm and are packed per 28. Each cube weighs approximately 11g. The mould is made of a strong polycarbonate.