Survival Cards - #28 Knot Tying Reference Tip Card Fulfilled by our friends at GrimworkshopKnowledge is power, and with Grims weatherproof tip cards that knowledge is at your fingertips!This Weatherproof plastic tip card, is a reference card for how to tie several different types of knots. As a visual guide it is a great reference to keep on hand. This card is both waterproof, and U.V. Resistant, so its perfect to always keep in a wallet or emergency kit. These tip cards are so thin, you can stack dozens together into one wallet slot, survival kit, or into a small tin. Fulfilled by our friends at GrimworkshopKnowledge is power, and with Grims weatherproof tip cards that knowledge is at your fingertips! This Weatherproof plastic tip card, is a reference card for how to tie several different types of knots. As a visual guide it is a great reference to keep on hand. This card is both wa