[Halloween Stanley Cup Straw Cap]:Straw Covers Cap come in 5 different styles and are colorful and suitable for Stanley 30 oz /40 oz cup straws and most 9-10 mm diameter straws. [Food Grade Silicone Straw Cap]:Straw cap is made of food grade silicone material, no odor, soft, and can be used for a long time. In addition, they are easy to clean, hand wash, and dishwasher clean. [Anti Dust to Keep the Water Cup Clean]:Stanley straw cover can seal the straw, prevent dust from entering when not drinking, and prevent drinks from spilling when moving, small and portable, you can carry around, such as walking, picnics, parties, camping, hiking and other outdoor activities. [Easy to Use]:Soft and light 0.4 inch /10mm straw cap, easy to put on and off, attached to the straw, when you open the straw cap to drink drinks, they will hang on the side of the straw, will not be lost. [Halloween Cute Creative Design]:Use a unique cartoon shape to make your cup easier to distinguish from others, and keep the straw clean and not overflow. Suitable for Halloween Christmas, Thanksgiving, New year, etc. You can share these Stanley Cup straw caps with your kids, friends, and family, making them a great choice for family or party gifts.