Om Mani Padme Hum Ring / Glow in the Dark / Silver Spinner Wheel Prayer Ring /This Mantra ring of Om Mani Padme Hum is engraved on the spinner and made of solid Sterling Silver 925. It will glow in the dark for hours, you can choose from 8 different glow in the dark colors! *** I do not suggest to have this ring in Deep Blue and Purple colors because the luminosity is very low for these small lettering. Width of this ring : 8mm It is said that all the teaching of the Buddha are contained in this mantra: Om Mani Padme Hum.