DescriptionThis item is shrimp egg incubating bottle cap. It is made of plastic material, safe, durable and practical. Easy to install and use. Breeding tool for shrimp in good years. Suitable for coke bottles, and other beverage bottles.Feature- Color: As shown. - Material: Plastic. - Size: Approx. 3x3x4.2cm. - Made of premium plastic material for durable and practical use. Safe and parctical for shrimp breeding. - Convenient to use, and easy to install and clean. - The diameter of the bottle is 3 cm. The tip diameter is 0.5 cm. - Suitable for coke bottles, and other beverage bottles. - It is easy to feed shrimp, suitable for fish tank and aquarium.