ITEM NAME:501PL Sliding QR Plate 1/4" 3/8" for Beno Manfrotto 501 503 HDV NG Tripod 2019 Descriptio n Description: Material: aluminum alloy+ABS Colour: Black specification:3/8''screwï ¼Å’1/4''screw Size: 90*50mm Product list: 501PL quick release board *1 For Beno Manfrotto 501 503 HDV NG Tripod Head We offer you what you need! 501PL Sliding QR Plate 1/4" 3/8" for Beno Manfrotto 501 503 HDV NG Tripod Head.Product list: 501PL quick release board 1. For Beno Manfrotto 501 503 HDV NG Tripod Head. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted. Size: 90 50mm.