Mirror Block Off Base Plates For 2000-2008 Yamaha R1 Yzf-R1 Yzfr1 Black These Mirror base plates can also be used as stand-alone block-off plates. Instructions: no instruction Material: High Quality Billet Aluminum Color: the same as pictures show Bolt Hole Diameter: 5mm,Size: 72mm x 33mm,Quantity: 1 Pair (2 pcs),,