Brustro Mechanical Pencil enables one to create everything from quick sketches, technical drafting to clean consistent handwriting without the need of sharpening the pencil. Being a metal body, it is still light weighted to prevent fatigue and allow long term use. The extra smooth and dark graphite leads in HB and 2B not only gives writing pleasure but are easily erasable with the TPR eraser under the push button cap. The spare leads and erasers provided in the blister pack ensures a very long lasting product and a value buy. Better than wooden pencils as needs no sharpening and length is constant unlike wooden pencils which gets shorter after each sharpening. As the lead wears down, it can be extended by simply clicking the push button at the rear end of the pencil.