Shop › Speedbumps - Medium Speedbumps - Medium $30.00 Comes in several colors.Handmade polymer clay earrings with nickel-free, medical-grade titanium earring posts and backs. Comes in several colors.Handmade polymer clay earrings with nickel-free, medical-grade titanium earring posts and backs. Color: Select Color Wormhole Black Ultramarine Blue Radioactive Green Maroon Sparkle Blue Quantity: Add To Cart Added!