The givi back support cushion for givi backrest for e370 case top box e109 is packed with features specifications include material polyurethane easy to fit comes with a measuring template and diagrams showing how to fit it adds comfort and back support perfect for long journeys fits designed to fit the e370 monolock 37 ltr top box fittings all fittings are included to attach the back rest to the top box please note givi backrests may require drilling holes in t