Uni Kuru Toga pencils are possibly the most innovative mechanical pencils around - the mechanism rotates the lead by a fraction every time it touches the paper. As the lead is constantly rotating it doesn't wear down on one side, creating a chisel or 'lipstick' end which causes fragile leads and uneven lines, instead it keeps the lead point even and sharp. https://cultpens.com/collections/uni-kuru-toga | Cult Pens