The Zen fountain is a simple looking pen that features a magnetic cap that is postable at each end of the pen. This is a great fountain pen that is suitable for everyday use. This pen features a custom green and black DiamondCast body. DiamondCast are resin mixes made with real diamond dust. Man, do they sparkle and shimmer in the light. Pen has two-tone #5 M nib and includes one ink cartridge and converter pump.