Schaefer's Big Boat flat batten receptacles are engineered to handle the extreme compression loads experienced on today's high roached mainsails. Machined aluminum body and backing plate keeps weight to a minimum while retaining strength where needed. The 3200-12 accepts 12mm studs from Schaefer slides or competitors track systems. Leech loading and fully adjustable for easy batten fit. Fits battens up to 32mm x 12mm. Adjustment range 2.5" (64mm), Length 7.25" (184mm), Width 3" (76mm). Weight 1.1 lbs, .5kg.