About This Ultra-Fine 0.25mm Needles for Even Extraction--Equipped with 14 precision 0.25mm needles spaced 1.58mm apart to effectively break up clumps and reduce channeling, ensuring a more uniform coffee bed and improved crema One-Press Auto Rotation for Faster Distribution--Simply press down to activate smooth automatic rotation. Distributes coffee grounds evenly and consistently with minimal effort — perfect for both home baristas and professionals Adjustable Needle Depth for Different Basket Capacities--Easily customize needle depth to match various coffee doses and basket sizes, giving you full control over your espresso preparation 10 Strong Magnets Base – No Shifting During Use--Built-in 10 powerful magnets securely attach to your portafilter basket, keeping the tool stable while distributing for a worry-free workflow Available in 51mm / 54mm / 58mm – Full Aluminum Alloy Body--Choose the correct base diameter for your espresso machine. Crafted from durable aluminum alloy for long-lasting performance and premium feel