This pack comes with an assortment colors like pictured- Blue, Green , Purple, Light Pink, Pink, and Yellow Top Ball measures 5mm , bottom ball is 8mm, both balls can be unscrewed from shaft for easier wear. Shaft is Surgical Steel and measures 3/8- 10mm. Shipping and Returns We are a U.S. based seller and all of our products are shipped from the United States. You can return any product within 30 days from purchase date. We Care And Will Reply Within 24-48 Hrs!