adjusts from 90cm - 160cm Hands down the best and easiest to use among all adjustable poles. Lets face it putting full covers on your boat can be tough. Make it easier with these cam locking poles. Much easier to use than traditional turn knob operation to tighten the pole. Made with extremely strong aluminium with ribbed walls similar to how poles for snow skiing are made. This is a heavy gauge wall - heavier than most. We special order these with a thicker wall so they won't bend or break when fully extended. Rubber foot ensures it won't slip or scuff your deck. buy more and save! each additional pole ships for 1.00! see the savings add up to others that offer We also throw in a free storage bag for the poles. Keep all of your poles together in one place with this storage bag that s shut on the end. (colours may vary) Fits ups to 6 adjustable poles.