The Foba Universal Reversible Camera Plate is a high-quality accessory for the Foba quick release system.The reversible camera plate is a replacement for the Foba SuperballYou can use this plate and the Superball along with quick release 33-0505 to convert it in to a Standard SuperballThe camera plate weighs 50 g and has a diameter of 3" (76mm)This plate comes with reversible 1/4" and 3/8" threadsThe Foba Superball is fixed to the camera plate with two Philips screws