DescriptionThis is a practical water bucket dust-proof device, made of food-grade safe materials, which can make your drinking water of less worry and more safety. It can isolate the air, and protect the water quality. It is the best choice for your life at home, and is also very suitable for school dormitories.Features-Color: As Shown -Material:Plastic+Silicone -Size: 7.00X7.00X9.00cm/2.75X2.75X3.54in -High quality materials, healthy and hygienic, durable to use. -Easy to operate and convenient to use. -Isolate the air, protect the water quality, so that you drink without worry. -It is the best choice for your life, and also very suitable for school dormitory. -Practical gifts for friends and family.