About this item SUITABLE FOR 54MM ESPRESSO PORTAFILTERS. Our espresso tamper features a 53.3mm diameter base, making it compatible with most 54mm espresso bottomless and double spouts portafilters. This means that you can easily use it with your existing espresso machine, making it an ideal choice for home baristas and espresso enthusiasts TAMPER COMES WITH TWO SPRING. This calibrated coffee tamper features dual interacting constant force springs and a built-in stopper, delivering a consistent 30 lbs of pressure with every press. This ensures evenly compacted coffee grounds for balanced extraction, helping you achieve cafe-quality espresso at home. CONCENTRIC CIRCLES PATTERN. The bottom surface of this tamper is designed with concentric circles pattern. It can ensure more evenly pressed powder while increasing the contact area between water and coffee powder, ensuring a more perfect extraction. Also it is made of solid 304 Stainless Steel. The stainless steel will prevent this tamper from getting rusted. Make you feel reassurance and comfortable when you’re making espresso. BLACK ALUMINUM ALLOY HANDLE. The handle of this coffee tamper is made of aluminum alloy that is known for its strength and durability. It can withstand high pressure and repeated use without deforming or breaking. It can provide a comfortable grip, reducing hand fatigue and improving the overall experience of using this coffee tamper. A GREAT HELPER FOR MAKING COFFEE. Whether you are an experienced barista or a espresso lover, our tamper is an essential tool for making delicious espresso. Its special design and thickened base make it easier to achieve a consistent and even extraction, while its food-grade stainless steel 304 construction makes it safe, durable, and easy to clean. So why wait? Come and experience the difference that a quality tamper can make in your espresso-making journey