This is the Ere Research dual wheel bag for 700C road or MTB wheels.
Protect your wheels during travel with this durable wheel bag—two separate compartments for each wheel. No problem to store the wheels with mounted tires and even MTB wheels 29er wheels will fit. The bag includes separate compartments for axles and small parts. A nice strap makes it easy to carry the bag around. A small pouch for your name and address will make sure this bag will always find its owner!