The holes of the tubes are punched rather than drilled for precision and durability

Code: 502 The holes of the tubes are punched rather than drilled for precision and durability The spring buttons are flat on their top faces for smooth adjustment. The buttons are precisely located within the inner tube so that they retain hold the outer tube on the inner tube during transport Works with other standard size diameter poles Closed length: 86cm. Range of useful length adjustment: 102cm to 142cm