The Ektelon O3 Red has a Power Level of 2700, making it one of the more powerful rackets in the Ektelon range, providing only slightly less power than the O3 Black... The O3 Red has the added advantage being the lightest racket in the Ektelon range and features WallGlider Bumper technology which helps protect the racket should any unfortunate collisions with the wall occur!.. Flex: Super Stiff.. Weight: 170g..