Material: 304 food-grade stainless steel. Corrosion-resistant and heat-resistant (-20℃~100℃). Dust-proof lid with silicone seal. Vacuum seal piston design. Capacity options: Small - 500ml (for coffee beans, tea leaves), Medium - 900ml (for grains, dry goods). The stainless steel body is durable and can directly touch food, ensuring safety and longevity. The airtight seal with a visible lid and silicone ring prevents moisture and leaks, keeping food fresh. The piston design allows for easy air release by pressing and a simple lid removal by pulling up the piston. Food-grade PP5 lid with a transparent valve creates a micro vacuum state, preserving the freshness of stored items. Available in two sizes for versatile storage options. Ideal for storing and extending the shelf life of coffee, tea, flour, sugar, grains, cookies, seeds, herbs, nuts, pet food, and perishable items. Suitable for kitchens, pantries, households, and any space in need of organized and fresh storage solutions.