Stanley FatMax XL Chalk Line 30m/100ft STA547480 Unique ChalkView Patented ChalkViewCase means you always know exactly how much chalk you have left Built to last Durable die-cast aluminum housing with stainless steel hook and crank handle are tough enough to handle any job in any conditions Easy to use Quick gear release allows you to pull out the tape without spinning the crank, the handle cleverly locks to hold the string in place Distance no object Carries an impressive 30m/100 of tough 27kg polyester/nylon string and over 1.5oz of chalk Easy to take with you Integrated belt clip means it s always there when you want it.