A bottle of premium milk, crafted by skilled skybuilders, featuring a sleek, cylindrical glass bottle with a rounded base and a narrow neck, sealed with a wax-coated cork. The glass is slightly frosted, giving it a soft, matte appearance, with a delicate blue and silver label wrapped around the middle, adorned with intricate skybuilder insignias. The milk inside is a rich, creamy white, slightly luminous to signify its magical enhancement.