OPTIMIZATION DESIGN * Simple, But not easy .It is not disposable,More than 30 times usable * flapot hemmed twice the edges of the product inside seamlessly Absolute safety/Four corners can be hot, so Take after a minute and then cooled./They cool so quickly * That is clear of worry about heavy-metal, endocrine disruptor * equipment that give you pride.General Delivery takes 17 to 20.Fast delivery takes 7-8 days(EMS Shipping)