Simplicity and comfort; the BPS-GP from Pilot.Featuring an ergonomic rubber grip for comfort during longer writing sessions, the BPS-GP comes in tip sizes and is designed to let you simply write.The hard-wearing tungsten-carbide ball won't wear down over time, while the pocket clip keeps the pen handy for when you need it.With refills available in all four tip sizes and a variety of colours, the BPS-GP is a valuable asset to anyone who needs a reliable pen for everyday life.0.7mm tip gives a 0.27mm fine line.1.0mm tip gives a 0.31mm medium line.1.2mm tip gives a 0.34mm broad line.1.6mm tip gives a 0.41mm extra broad line.