Trodat 9411 Mobile Self Inked Rubber Stamp. The Trodat 9411 Mobile Printy is designed for easy, one hand operation. A simple "pinch" of the tip of the mechanism opens the unit and exposes the printing die. There is no cover to remove. The unique "pyramid shape" design (as shown here opened) provides stability to the baseplate and evenly distributes the pressure, ensuring a clean, clear impression. The Trodat patented ink pad makes re-inking or replacing the pad clean and easy. This Trodat 9412 Mobile Printy design is modern and attractive. Image size is 1/2 x 1-1/2 inch.