Poplar and Maple pro-grade hybrid composite construction Manufacturer's guarantee (Barrel Only) Available in 34 inch, 35 inch and 37 inch models ProNine fungo bats feature Poplar and Maple pro-grade hybrid composite construction for long lasting durability. Comes with ProNine's fungo bat guarantee: ProNine Sports will replace a broken fungo bat if the BARREL cracks or splinters. ProNine Sports will not be responsible for a fungo bat if the handle cracks, splinters, or breaks. - Poplar and Maple pro-grade hybrid composite construction - Manufacturer's guarantee (Barrel Only) - Available in 34 inch, 35 inch and 37 inch models