For Office-Bag Commuter-Bag Commuter-Bag Two. Worn broken or lost QL2.1 mounting hooks? No problem! Simply replace the hooks with a new set of QL2.1 hooks & adjustable handle. If the new hooks are too loose on your bike rack use the appropriate hook inserts for a snug fit. Included: + 2x QL2.1 hooks (16 mm) with adjustable handle+ 1 pair each of hook inserts in sizes 8 mm 10 mm & 12 mm More Information COLOR black BAG TYPE single ADAPTER Quick-Lock 2.1