Product dimensions: The product dimensions are 26mm outer diameter, 10mm inner diameter, and 2mm thickness. Manual measurements, please allow slight errors. Compatible with Battistella, Compatible with Unika, Compatible with Pratika, Compatible with Futura, Compatible with Maxi Vapor,Compatible with BG, and for 3/4 inch safety valve Ironing System Material: This product is specially designed with EPDM for a long lifespan and resistance to damage. Easy Installation: Direct replacement without adjustment, ensuring perfect compatibility and high reliability. Package: This product includes a total of 4 Safety Valve Seal Washers, which completely meet your daily use and replacement needs., Manufacturer: SG Store