Here's a fun set of "Pencil Topper Erasers"! These classic style pixel-sprite erasers are white, with stamped designs of Sonic, Tails, Knuckles, & running Eggman. The design probably appears on both sides of the eraser. The bottom has a hole in it, & fits on the top of the plain stick pencils in the package.
Notice the off-square package edge. This company is making many classic-style items like bounce-balls, toys & more.

Notice how the pencils in the factory photo are blue, but the ones in the package are natural-unpainted wood. Also notice how some of the designs (but not all) are reversed in the factory photo.
Eraser Care:
Collectible erasers are different from collectible plastics. You have to know how to care for & preserve your erasers. First, do not use the eraser for anything, it will erode the design. Next, it's best to not put them on the pencil top, as this could crack the hole. With a package like this, it's best to leave them MIP. (Mint in Package) If you have unpacked erasers, be sure to keep the design face so it doesn't get dusty. (Erasers can get 'gummy' over time, trapping dirt or ruining designs.) Also don't set anything directly on the design-face, it can stick and peel it away after it ages there/sits a while- this includes paper and tissue. Sunlight sometimes yellows erasers.