BEST eye roller on the market, hands down! I swear I own pretty much every eye roller on the market. Lol This one is definitely the best. Looks oddly designed compared to other eye rollers on the market. But the ergo-dynamic design makes perfect sense (for both ends of device). Rolls nicely under the eyes, onto face, lymph nodes on neck because it probably has ball bearings inside the chamber. Has a convenient spoon shape on handle end for creams. I love this roller so much I went back during a 50% Quo sale and bought a few more (bedroom, living room, car). Side note- One of my rollers didn't spin as effortlessly as the other ones (spun okay, but not perfectly smoothly). I simply applied an odourless petroleum based oil (3in1oil or sewing machine oil) and spun the roller on my palm to evenly distribute the oil while watching tv. Then washed roller end with dish soap to remove any trace of leftover oil residue (quick wash so don't remove recently applied oil in chamber). Works like a charm for several years now! Never a problem and doesn't have a 'rancid cooking oil smell' because I applied a thin petroleum based oil.