The best color of Lizard Skins grip to use on the BamBooBat Bamboo Wood Youth Baseball Bat: HNBBY Natural/Black is strictly one of personal preference.
The correct size to get the BamBooBat Bamboo Wood Youth Baseball Bat: HNBBY Natural/Black for a 9 year old would be determined by a player's height and weight as well as the weight of the bat they are currently using and how well they are able to handle this weight. Please refer to our bat coach feature to get a better idea of the correct length at: http://www.justbats.com/bat-coach/
The weight of the BamBooBat Bamboo Wood Youth Baseball Bat (HNBBY) can vary based on the density of the pressed bamboo that it is shaped from. It will weigh approximately 24 or 25 ounces if it is 30 inches in length.