Built for feel-first hitters The Tater J21 Pro is a knobless wood bat built around a thin handle, medium barrel, and sharp flared knob — a design that eliminates the traditional bump at the base of the bat, creating a seamless feel through the hands and protecting the hamate bone on aggressive swings. Knobless Feel Sharp flared design removes the traditional knob bump — the bat flows naturally through the hands for a quicker, more fluid swing path. Hamate Protection The flared knob cradles the bottom hand naturally — reducing pressure on the hamate bone, a common injury point for aggressive hitters. Pro-Grade Wood Available in maple or birch — ink-dot certified, hand-split, and bone-rubbed to the same standard as the MLB player bats we ship from our Connecticut shop. ⚾ A modern take on a classic vintage profile. The J21 delivers the balanced feel and quick whip of an old-school knobless bat with the pro-grade wood and craftsmanship Tater builds into every model. Custom build · Ships in approx. 10-14 business days. Need it sooner? Browse ready-to-ship stock bats → Tater J21 Pro — The Knobless Design The Tater J21 Pro is a knobless wood bat built around a single design idea — remove the traditional knob and let the bat flow naturally through the hands. The sharp flared knob eliminates the bump at the base of the handle, creating a seamless feel that produces a quicker swing path and reduces the pressure on the hamate bone that causes hand injuries in aggressive hitters. The thin handle keeps bat speed quick and the medium barrel keeps the swing controlled — a combination that works for contact hitters who want more fluidity through the zone, and for power hitters who've dealt with hand discomfort on a standard knob and want a more forgiving feel. Why hitters pick the J21 Pro The J21 is Tater's flagship knobless model — same wood, same turning logic, and same hand-finishing as the bats we cut for hitters in MLB, MiLB, and Division I college play. Family-owned since 2015, 500–1,000 bats a week out of our Cheshire, Connecticut shop, MLB supplier — that's the shop you're ordering from when you put a J21 in the cart. Maple or birch? Maple gives you the hardest hitting surface and the cleanest "pop" sound off the barrel; birch flexes a touch more and is more forgiving on mis-hits, which a lot of high-school and college hitters prefer. The J21's knobless feel doesn't change with species — pick the wood, the bat stays the same. Read more in our Maple vs Birch vs Ash guide. Specs Knob: Sharp flared — knobless design Handle: Thin Barrel: Medium Feel: Balanced Wood: Maple or Birch (ink-dot certified, hand-split, bone-rubbed) Length: 31"–34" (buyer's choice) Made in: Cheshire, Connecticut, USA Lead time: Approx. 10-14 business days Warranty: 30-day limited warranty included Not sure the J21 is your model? Take the Bat Finder to confirm length, drop, and feel. Check the Wood Bat Size Chart before you commit, or browse the rest of our Custom Wood Bat lineup. Want to spec your own colors and engraving on the J21 silhouette? Head to the Custom Wood Bat Builder. Made in Connecticut, swung in MLB.