About this item 6.3 Inch Large Capacity & Durable Material - The espresso knock box can hold up to 10 coffee pucks at a time. Made of high-quality stainless steel, ensuring durability and resistance to leaks or damage. Removable Knock Bar – Features a silicone exterior with a solid aluminum alloy core. Fully detachable make it effortless to clean. Securely fixed to prevent shifting or falling off. Stable & Non-Slip Design - Equipped with a non-slip pad, the knock box espresso stays securely in place, preventing movement or scratches on your kitchen countertop. Safe & Quiet Knocking – The dual-layer protection with a silicone knock pad and a non-slip base. Effectively absorbs impact and minimizes noise, allowing you to enjoy a peaceful coffee moment. Modern Design – Stylish curved design that seamlessly fits into any space. Space-saving and modern appearance, making it a great addition to any coffee setup.