Xcellent Global Survival Pocket Saw Chainsaw with Pouch SP027 Newly designed narrow chain has Bi-Directional teeth that eat through wood with every pull. Weighs only 140g with pouch, small enough to put in pocket yet cuts through wood faster than traditional saws! Flexible nonbinding blade Total 11 blades and 40.55 inch. The length of the saw chain: 22.05 inch Product maintenance: Not to contact water to avoid rusting. Clean the dry cloth after using. Keep the blades sharp using the file.