Colter Co. Knot Tying Emergency Survival Bandanna KNOW YOUR KNOTS - Take your knot tying guide with you where ever you go. Practice or teach knot tying in the outdoors without needing to worry about getting your favorite knot book wet, or how much battery life your phone has left. 16 ESSSENTIAL KNOTS FOR SURVIVAL - Our bandana features 16 essential climbing, sailing and survival knot diagrams printed on a versatile and rugged bandana. Not to mention the thousands of uses for a bandana. PERFECT GIFT FOR OUTDOOR ENTHUSIASTS - An excellent gift for the outdoors enthusiast or survivalist on your list. BUILT TO LAST - Printed with soft water based inks that will hold their color under the roughest treatment. These American made, 100% bandanas are made to be used, and offer you another layer of information that a standard bandana won't. MADE IN THE USA - Printed on 100% cotton. Made and printed in the USA. 22" x 22" square.