Material: Plastic pen and stainless steel nozzle Dimensions: Length: 16cm/6.30"， Outside diameter: 3cm/1.18"， Inner diameter:1.5cm/0.59"Color: BlueUse:For all kinds of cake decoration ， ice cream， milk shake，cookies and all kinds of pastry decorationPackage included:1 * Decorating gun4 * Pastry tips2 * Convert head4 * pastry bags (reusable)