Twist the top to reveal different size options for all your spice needs! Small, medium, and large holes allow for anything from salt and pepper to chili flakes and parmesan! Also includes a wedge opening for pouring and scooping! The straight edges are perfect for leveling off your spoonful! 4 Lids and 4 Platinum Silicone Gaskets per order in a box. The single piece, stainless steel lid will screw directly onto any standard mason jar – fewer pieces, less clutter! Made of 304 grade Stainless Steel – one of the safest materials for food! LFGB Platinum Silicone Sealing Rings included for a tight and secure fit. Dishwasher Safe – Will not Rust!