Brew the perfect cup of coffee with the Pour Over Coffee Maker, designed to give you full control over your coffee extraction process. High-Quality Construction: Made from high borosilicate glass with a durable silicone base, this coffee filter cup is safe, heat-resistant, and built to last. Innovative Adjustable Valve: Equipped with a steel ball and on/off valve, this cup allows you to easily control the water flow, ensuring optimal soaking and extraction for a rich, flavorful brew. User-Friendly Design: The base and valve system allow for easy operation—simply press the switch to release the valve and filter the coffee, perfect for customizing the strength and flavor of your brew. Large Capacity: With a capacity of over 600ml, this filter cup is perfect for making multiple servings of your favorite coffee. Note: Handle with care to avoid losing the steel ball during use. The droplet flow when the switch is closed is normal. Specifications: Material: High Borosilicate Glass, Silicone Capacity: >600ml Features: Adjustable valve, steel ball for water flow control, easy-to-operate switch