This is an original product of Kiwa Seisakusho. The thickness is approximately 1.5mm, and the inner diameter of the can is approximately 1.5mm. It is a charm of a size that is easy to use as an accessory. Since it has a square design, you can connect it with a ring and use it like a joint part. We recommend a jump ring of 0.6 x 3.5 mm or larger. The back of the charm is flat, so you can pour UV resin and arrange it. *As this is an accessory, the color may change to reflect changes in fashion. Also, during the processing process, color shading may occur without prior notice. Please note. (Some parts may differ in color from other parts.)