This Magnusson extension support rod is designed to hold plasterboards, standard ceilings and inclined ceilings of up to 30 kg. It has an extension range of 115-290 cm and operates on a pump mechanism. Makes setting door frames & drywall constructions a simple, one person job. A rubber end cap prevents damage to the supported material, reduces the chance of slipping and provides greater stability. Quality assured with a 5-year guarantee