TIBETAN BUDDHIST RING With Om Mani Padme Hum Mantra - OMA BRAND Size #10 Ring Expandable Beautiful Eastern Medicine Ring Nice gift for any man Unisex ORIGINAL OMA BRAND. OMA is a registered brand with the US Patent and Trademark Office. Our logo, brand, and slogan are all intellectual property of One Thousand Artisans. One Thousand Artisans is the ONLY authorized DISTRIBUTOR AND SELLER of this brand in North America.