1) 89mm bottom weight; 32g+2g 2)127mm bottom weight;44g+2g, 3)strong ears,not easliy break 4)UV protected as you desired 1) 89mm bottom weight; 32g+2g2)127mm bottom weight;44g+2g,3)strong ears,not easliy break4)UV protected as you desired5)good suit with the bottom chain vertical blinds components bottom weight