Conair Scalp Care Detangling hairbrush - Curly Hair Brush - Scalp Massager - hairbrushes for women & men - detangler for all lengths and types - can use wet or dry - Black Onyx 1 Count (Pack of 1) Black Onyx is up for auction in Beauty & Personal Care. The current bid is $5.50, 53% below the $11.69 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.