Features: 37mm aluminum foil coffee pods sealing films ensures 95% oxidation resistance, preserving aromas and freshness with protections against moisture and air for 100 servings per pack. Precisely sized 37mm diameter fits coffee pods, featuring smooth nonstick surfaces and heat resistant design (up to 200°C) for leakproof brewing without deformation. Ideal for home baristas, coffee shop owners, and espresso enthusiasts seeking professional freshness preservation for ground coffee in compatible machines. Perfectly seals coffee pods during espresso, latte, or cappuccino preparation in kitchens, offices, or commercial cafes, maintaining flavor integrity from storage to brewing. Outperforms plastic films with superior light blocking aluminum foil construction that prevents flavor degradation, ensuring consistent taste profile across multiple brewing cycles. Specifications: Component: Aluminum Foil Color: Silver Diameter: Approx. 1.45inch(37mm) Package Includes: 100x Coffee Powder Aluminum Foil Cup Film note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.