The Flair PRO 2 Portafilter Sleeve has been designed to wrap around the portafilter of your PRO 2. Ths Sleeve, made from silicone ensures that the Pro 2 portafilter is safe to touch, even if you have begun the preheating stage! The sleeve also has a lip that has been designed to wrap around your stainless steel portafilter does not damage the portafilter base of your PRO 2.