PVC Motorcycle Windshield Bag With StudsHeavy Durable PVC Features Studs PVC Windshield Bag Set (3 Compartments) Dimensions of Entire Bag Set: 21 1 2" x 1 1 2" x 5 3 4" Dimensions of 2 Outer Bags: 6 3 4" x 1 1 2" x 4 1 2" Dimensions of Middle Bag: 8" x 1 1 2" x 4 1 2" Depending on your motorcycle you can either have one, two, or three storage compartments on your bike. Our 3 storage compartments motorcycle windshield bag features studs on the 3 bags.