The Delta Inox cages are great for your bike or for your BOB Trailer. Weighing in at only 45 grams a pop, you can load up your bike, or add 2 to your Bob Trailer or 4 to your Ibex trailer. Bulletproof, lightweight, you can't beat the quality of these cages.
BOB Yak Bike Cargo Trailer
BOB Trailer and Stroller Travel Bag
Wandertec SAX-BOB Trailer Cargo Liner