The Silicone Sleeve for 30oz Tumbler with Handle by Caxgek is a Stan ley Cup Cover made of black silicone. It is designed to fit a 30oz tumbler and includes a silicone sleeve for added protection and insulation. The sleek black color adds a stylish touch to your drinkware while the durable silicone material ensures longevity and easy maintenance. Perfect for on-the-go use or at-home enjoyment, this sleeve is a practical and stylish addition to your cup.