These V shape rings are great for thumbs or knuckles.  They make very stylish rings on your hands.  You can stack a few of them or with other rings styles to make it your own unique set. This design comes in 3 different colors.

Solid 925 Sterling Silver. Approx. 10mm Width. Platinum Or Gold Finish. Tarnish Free. Nickel Free. Hypoallergenic.