Dark Square Horn Ring Oversized Back Acne Causes and Best Treatment to Get Rid of Back Acne and Scars. Make a statement with these exquisite Square Horn rings. Handcrafted with care, they boast lightweight durability and stunning artisanship. Originating from Kenya and Ghana, each ring is meticulously handmade using buffalo horn, resulting in a unique, high polish finish. Due to the natural materials used, colors may vary, adding to their individual charm. When selecting your style, please choose based on your ring size or specify your size in the notes. Square size: 2x2 inches.