The topeak link 11 stainless steel folding chain tool is a compact stainless steel folding chain tool for use with pin type multi speed chains including 11 speed hollow pin topeak link 11 stainless steel folding chain tool features integrated chain hook stainless steel case 75x16x23cm 95g about topeak topeak is the world leader in developing and producing innovative accessories designed to make cycling more convenient more accessible and more fun at every level they are