Q&A Question:With the other nipples, you have to poke a hole for the air vent. Do you have to do that to these as well? Answer:There is a vent specifically molded into the silicon at the base of the nipple to allow for great milk flow. Poking additional holes may cause unwanted leaking Question:How long can this product be used? Answer:Indefinitely, as long as it's kept in good condition. Features: 1. Designed for calf, the rubber nipple is similar to cow's milk, making it easy for calf to eat. 2. With handle design, easy to feed. A great tool of weaning small animals from their mothers gradually. 3. 4L capacity, sufficient for daily consumption of calves. 4. The bottle body is made of premium plastic, thickened, safe, healthy, durable for long term use. 5. Comes with regulating valve to control milk flow rate. Specification: Condition: 100% Brand New Item Type: Calf Nursing Bottle Main Material: Plastic Product Color: White Product Capacity: 4L Suitable for Animal Type: Calf Package List: 1 * Calf Nursing Bottle Note: Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.

?Calf Bottle?Help the calf drink milk in a natural speeds, produce a lot of saliva, help digestion.With large bottle mouth, filling milk or medicine is convenient and easy to clean. ?High Quality Material?The baby bottle holder holder is made of premium plastic, thickened, safe, healthy, durable for long term use. ?Thickened Handle?Thickened handle, user-friendly design, ergonomic design, easy to use.Multi-purpose milk bottle, Hanging type , can feed calf lamb sheep goat cattle, etc. ?Large Capacity?Calf Bottle with Handle and Push-On Nipple, 4L capacity, sufficient for daily consumption of calves, provides a very convenient and quick way to feed. ?Convenient Feeding?Bottle holder for baby, Premium Calf Feeder with self-adjusting valve, calf bottle can control the flow rate of milk, and feeding is more convenient.

Bottle Type: Vented Bottle. Capacity: 4 Liters. Bottle Nipple Type: Vented. Item Weight: 0.38 Kilograms. Brand: Cosiki. Best Sellers Rank: #103,251 in Baby. Customer Reviews: 1.0 1.0 out of 5 stars 1 rating 1.0 out of 5 stars. : B088CSQRK5. Item Weight: ?13.4 ounces. Bottle type: ?Vented Bottle. Bottle nipple type: ?Vented. Dishwasher safe: ?Yes. Batteries required: ?No. Number Of Items: ?1. Product Dimensions: ?15.75 x 7.09 x 3.94 inches.