These tool-shaped erasers are a back-to-school essential! They're great if your kid loves to craft and build, or if they love Bob the Builder! The eraser kit comes with a gray wrench, a yellow nail, a green hammer, and a blue nut. They erase very well to help clear up pencil errors completely and provide you with a blank slate to start again. They are all soft erasers, which makes them great for pretend building for kids. The four tools measure approximately 3" at longest, and come packaged together in a rainbow-colored hanging blister pack.