SKS: Practical adapter for bile bottle holders  If the bottle holder does not fit into the holes provided on the bike frame, the CAGE SHIFTER comes into play. With its practical slotted holes, it allows the bottle holder holes to be moved 1.5 to 4.5 cm.Lets you move the holes on the frameThe practical adapter is made of sturdy and lightweight polycarbonate. Thanks to its flat design, it is integrated discreetly on the frame. Once mounted, the bike bottle holder can be easily attached to the CAGE SHIFTER with the two screws supplied.Adapter for moving the bottle holder holesWith slotted holes for more adjustment optionsFlat and discreet designMade of lightweight polycarbonateMade in Germany  SPECIFICATIONSWeight | 16 gMaterial | Polycarbon