The Survival Chain Saw from NDuR is an excellent pocket sized tool that is lightweight yet heavy duty. It is quite ideal for building shelters and for cutting firewood in survival situations. This superb hand operated survival chain saw features riveted sections of bi-directional chain saw style cutting teeth that has extended longevity comparable to a traditional bow saw. It will cut anything from a thin branch to a large trunk and can be thrown over high branches for cutting above head height. Features black nylon lanyard loop handles and a total chain length of 26 inches.