It can be used for heavy items - you can put all tools, even heavy items, in this kit with multiple slots, and then organize all tools. Roll up the storage bag. The storage bag can be rolled into a compact storage bag. It is not as bulky as the toolbox. Roll up and unfold, the size of the bag is approximately 49 x 29 cm. It has a durable mesh handle and a fixed fastening belt in the middle, which is easy to carry and expand, making outdoor activities comfortable. We use solid metal rotating shoulder strap clip instead of fragile plastic clip to ensure the durability of this tool bag. Removable nylon shoulder straps are designed for your transport comfort and easy to hang. This roll up storage bag is made of strong and durable canvas fabric, with tear resistance and water resistance, and reinforced stitching at key anchor points. And the bag is completely surrounded by the clamping belt to increase the strength. It is a good choice for men or women to store first aid kits, tool kits and other items, because it is very compact and can be folded and placed under the seats of cars, motorcycles or bicycles.