Bumbleberry Pie Mini Dichroic Glass Studs. Your eye-catching Purple/Blue colour changing earrings will come on a personally designed wooden card. When you're not wearing them, this is the perfect place to store, so that you don't have one go missing!These unique Bumbleberry Pie Mini Dichroic Glass Studs are approximately 6mm in size. These are our smallest earrings yet! Perfect for small ears and children. These glass studs have been carefully handcrafted by the skillful artists Carolyn & Anthony Green, who live in Victoria, BC. Canada. Each piece of artwork is designed and fashioned from start to finish using only the finest skills in glass craftsmanship. Stud posts are hypoallergenic surgical steel.