The topeak prep 25 tool is a professional quality multi tool offering you 28 functions ideal for single gear or fixed gear cyclists the high strength stainless steel body for heavy duty use giving it increased durability and corrosion resistant this topeak tool comes in a compact carry bag with integrated straps that will conveniently mount it to your top tube for easy accessible storage topeak prep 25 tool features 1522534568 mm allen bits t10t15t25t30 bits 810