Features [relief valve]Safe pressure release Ensure full extraction of coffee [Food grade material]Food contact surface is SUS304 stainless steel [Non-slip lid]The concave design makes the cup not easy to slide out [Intimate handling]It's easy to pick it up and go Specification Model/Name: BRS-TC05 Outdoor Coffee Machine Size:110*220mm Weight: 0.65kg Material: Stainless Steel Range ofapplication: Outdoor recreation, Camping Notes Product dimensions are measured manually, there may be errors, please understand.