Come and see our amazing products. Made of pure food-grade silicone and stainless steel, safe to use. Suitable for Medium to large leaf loose teas, not suitable for ground tea or very fine tea leaves. The steel ball's holes aren't designed to brew fine tea leaves.The holes allow the water to move through the tea leaves but keeps most of them in the steel ball and out of your cup so you don't have too many leaves in the bottom of your cup. Pls confirm with us about the packing info, stock color and exact production time before placing your order