The bic cristalreg fun ballpoint pen features a durable tungsten carbide ball mechanism and oil based ink for smooth controlled writing the vibrant pink ink and larger 16mm tip gives a thicker 06mm line ideal for stylish titling designing and larger handwriting the lightweight barrel has a smoky translucent finish and is hexagonal for comfort in use this pack contains 20 pink pens great for colour coordinating your work ballpoint pen with fun pink ink durable tungsten carbide ball m