Cake Decorating Pen.Multicolour.

The image displays a cake decorating pen kit, also commonly known as an icing pen or frosting deco pen. 

This tool is designed to simplify cake and pastry decoration, allowing for precise control when creating designs, patterns, and writing with icing or other edible mediums like chocolate or jam. 

The kit typically includes:

• The main decorating pen body: A plunger-style mechanism to dispense the frosting or decorating medium.
• Interchangeable decorating nozzles/tips: These come in various shapes and sizes to create different designs, such as fine lines, stars, or broader strokes.
• A holder or stand: Used to keep the pen upright and organized when not in use. 

How to use a cake decorating pen:

1. Fill the pen: Remove the outer tip and pull back the plunger to fill the pen with your desired frosting or decorating medium.
2. Attach the desired nozzle: Select and attach the appropriate nozzle for your design.
3. Decorate: Hold the pen like a regular pen and gently squeeze the plunger or sides to dispense the frosting and create your decorations.
4. Clean: Most parts are designed for easy cleaning, often being top-rack dishwasher safe, though plungers may require hand washing.