Use for magnetic / cat eye gels 

+ QR code link with tutorial 

In addition to its unique shape, it is a high-power magnet that can pull magnetic nails together. Since it is sized to fit the shape of the nail, it is a little difficult to hold it directly with your finger, so it is recommended to use it by attaching it to a stick with a long magnet as shown in the image

16mm x 10mm x 3mm