This is an accessory clasp. Used as a set with board Daruma, adjuster, etc. *5mm ring is a closed ring. *There is a cut in the ring for sizes larger than 5.5mm, but please avoid opening and closing as this may cause the plating to peel off or cause damage. *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.)