This is a MATFER logo piping tip, favored by professionals. Made of polycarbonate, it can be washed thoroughly. The inside of the tip is visible, making it ideal for checking your work. Purchased in France and stored at home. There is some yellowing overall, but it can be used without any problems. Please purchase only if you understand that this is a used item. Width: 17 Φ35mm (Outer diameter of the wider part) Φ25mm (Inner diameter of the wider part)