Product Description The ORTLIEB Retrofit Kit mounting set for using the Stabilising Insert in older panniers This Retrofit Kit from ORTLIEB is used to keep the Stabilising Insert in place in panniers until model year 2023. You can tell whether you need it for your bag by the fact that on older models there is no slot on the inside of the back of the bag to secure the insert. The small bridge is attached to the back of the bag so that the tab of the insert is held in place and prevents it from slipping. Technical Information:Material:compositeCompatibility:Back-Roller until 2023 modelBike-Packer until 2023 modelBike-Shopper until 2023 modelManufacturer Number:F3912 Contents:1 x , 3-piece Manufacturer: ORTLIEB Sportartikel GmbH Rainstraße 6 91560 Heilsbronn Germany info@ortlieb.com