The plastic of the previous dome quickly became brittle and so forth had to spare. This case is easy, by the white color neutral but etwaas striking. In addition, the envelope is really "Basic", therefore no reinforcement rods to be easier to put on the envelope on the screen. To close only to binding tape, no cord with adjustable stoppers. But also priced just unbeatable. Let's see how many summers is this envelope now persevere.