Reference: #RCM-X4-RCSB-1.5#
Brand: RC Maker
RC Maker Brass Roll Centre Shim Plate Set for Xray X4 - 1.5mm
RCM-X4-RCSB-1.5 - Changing roll centres on your X4 has never been easier, rather than undoing the whole screw and having shims flying everywhere, simply loosen the screw, slide the shim plate out, and install the new roll centre shim plate, and re-tighten the screws!