Starbucks Iridescent 12 oz Purple Stainless Steel Tumbler. This stylish tumbler features a captivating iridescent purple finish, perfect for keeping your beverages at the ideal temperature. Made from durable stainless steel, it's designed for daily use. The 12 oz capacity is ideal for your favorite coffee or tea on the go. Excellent pre-owned condition, ready for its next owner. Please note the creative flower straw top is for display and is not included.