Shop › Rio Hoop Earrings Image 1 of 2 Image 2 of 2 Rio Hoop Earrings $20.00 These brass hoops measure 40mm*40mm*1mm. Features a black leather strap fixed to a gold plated hypo allergenic post. Quantity: Add To Cart Added! These brass hoops measure 40mm*40mm*1mm. Features a black leather strap fixed to a gold plated hypo allergenic post.