The Kadokeshi Plastic Eraser features 28 corners, aiming to outlast all other eraser competition on the market. How so? The theory here is that people use 8 pointed erasers because the points provide for more precise erasing of an area. Once the eight corners have rounded out, you no longer have that sniper-like control. Therefore, tack on twenty more corners, and it should last that much longer. When one of the cubes rounds itself out, cut it off, and you have fresh corners at your disposal.

Read More | Eraser Product Page via StrangeNew