SSK SSK Sakamoto Model SBB5053F 72cm Youth Soft Baseball Metal Bat Line Drive Sakamoto Model Mainly for children around 120cm tall (estimated for 3rd-4th grade elementary school students), 72cm long, approximately 450g, middle balance Material: Aluminum alloy, Color: Red x Black Product Features Model Name: Line Drive (Sakamoto Model) Product Number: SBB5053F Target: Youth Soft Baseball Material: Aluminum Alloy Balance: Middle Balance (easy-to-swing intermediate balance) Size: 72cm (Maximum diameter 63.5mm) Weight: Approximately 450g (average) Recommended for children who: Are around 120cm tall and are not yet confident in their ability to swing the bat through. Want to prioritize operability with a middle balance. This bat is a popular model of Hayato Sakamoto, a popular player in youth baseball, and is considered easy to use for many youth baseball players due to its middle balance. Quoted from the above online product description. My first-grade child used this for about 3 months. Thank you.