The straw caps are made of silicone material, for use. Adorable straw plugs can add an amusing and fun atmosphere to your daily life. It saves space and is easy to store, it will be not taken up much space. Features -Color:Assorted Color -Material:Silicone -Size:5.50X3.20X1.60cm/2.16X1.26X0.63in -Note:It is suitable for the straw diameter with 1.2cm/0.47in. - The straw cover is practical for use, its adorable appearance can make your straws different from others. - They are strong enough, not easily deformed or broken, and can serve you for longtime. - The straw caps can be easily opened and closed, you can directly attach or remove the straw caps to the straws as you need. - Adopts fine craftsmanship, details, special shape and reusable design, not easy to break. - Straw tips cover with cute design, very practical in use, also provide you . Package list: 2 x Straw Covers