This is a pivot foot rotation board from the popular manufacturer Field Force. Purchased from an authorized dealer and used indoors about twice. It's almost new. Batting practice, swing practice, training equipment, supervised by Hirokazu Ibata, FJKB-2085 Retail price: 6,600 yen The "Pivot Foot Rotation Board" transforms the power of the lower body into impact power. 1. The heel of the pivot foot side does not lift off the ground. 2. The toes of the pivot foot side open outward during the swing. You absolutely cannot achieve a "powerful swing" if you can't use your pivot foot properly! Therefore!! The "Pivot Foot Rotation Board" ----------------------------- Size: Approximately 22cm x Approximately 12cm Material: Steel Weight: Approximately 280g ----------------------------- Field Force, batting, rotation, baseball Pivot foot rotation, baseball practice, practice equipment, training