Lays, the world’s bestselling potato chip brand, recently launched a limited edition miniature washing machine for oily fingertips.

Let’s face it, there are few things in the world more addictive than potato chips, but if there’s one thing everyone hates about them – apart from getting us fat – it’s the grease they leave on our fingertips. You need to have napkins on hand, lick your fingertips (yuck!), or get up from that comfortable sofa and wash up when you’re done stuffing your face. Well, thanks to a rather ingenious marketing campaign, potato chip enthusiasts now have another option – a miniature washing machine designed specifically to clean oily fingertips.

It sounds dumb, and it kind of is. After all, who needs a fingertip washing machine? But the cool factor is definitely there as well. The concept itself is interesting, but the fact that they made this contraption look like a classic washing machine was pure genius.

All you have to do is press the on/off button, put your oily fingertip into the machine through the laundry door and wait for the magic to happen. Although not as advanced as a modern watching machine, this little thing features a clever induction system that sprays atomized alcohol when it detects your fingertip inside the washing machine. The alcohol comes from a refillable tank at the bottom of the mini washing machine.

The Lays fingertip washing machine measures 15 cm in height, 11 cm in width, and features a USB Type-C charging port.

The fingertip washing machine recently went viral on Japanese social media, with countless people expressing interest in it, either as a collector’s item, or just for fun. Unfortunately, only five such devices will be made available, and not commercially, but through a special lottery. It’s unclear whether people from outside Japan can participate for a chance to win one.