Rude American Bats Power Engineered MOAB(Mother Of All Bats) -3 BBCOR.50 Mother Of All Bats ~ Rude American MOAB bats are hot out of the box and do not require a break in period. The proprietary Power Engineered design produces a moderately end loaded bat. This moderate adjustment is engineered for quickness through the zone, the ability to square up more often, and increased swing and ball exit speeds providing dramatic results for the power hitter. BBCOR Certified High School and Collegiate Play ~ The -3 BBCOR.50 Rude American MOAB Power Engineered bats are designed for players ages 13 and above and are ideal for high school and college players. Barrel Size: 2 5/8 inches If you are currently swinging a 34 inch, try our 33/30 and remember Barry Bonds used a 32 and choked up.