Traditional felt stamp pads offer two colors and a convenient, flip-open design. The flip-open stack design saves space and delivers more stamping options. Durable felt pads provide long life for efficient ink transfer. Use the two bottles of refill ink - one red and one in black - to replenish the ink pads. Each felt stamp pad offers approximately 10,000 impressions. Each bottle offers approximately 50 re-inkings. The stamp pad case is made of plastic.