Shimano Di2 junction spacer type2 for lower adapter [REC MOUNT] [Di2-EW90-Specer2]

Material: Aluminum & Resin Weight: 6g About standard Di2 / L2 standards http://www.an-y.com/img/kikaku.jpg In the box (accessories) M2.5×8 screw 2pc Please read the product description and notes carefully other than the images.