Shachihata Oil-Based Ink Pad - Iromoyo Kosai - Traditional Japanese Colors. The Iromoyo Kosai ink pads contain tiny glitter particles to add a bit of sparkly elegance to your stamped creations. The surface of the pad is designed to make full contact with a stamp. It produces a sharper and brighter result than a standard ink pad. It also dries fast and waterproof. The colors in this series originate from traditional Japanese colors. The plastic lid of this stamp pad is not attached, and the bottom of the pad is designed to be stackable for easy storage.