This is an Ultra Monster eraser from over 30 years ago. It's Oildrinker, a monster that appeared in Ultraman Taro. When I researched it for the listing, I found many Oildrinkers from Popy's Anti-Q series on flea market and auction sites, but I couldn't find this Oildrinker made by Sears anywhere. I finally found it in a monster encyclopedia for enthusiasts, but there were no places selling it. Is it a super rare item? Recommended for those interested. Price negotiations are also welcome!!