【Two Sizes, One Perfect Seal】Simplify your storage with 50 lids—a perfect split of Wide Mouth (3.31"/84mm) and Regular Mouth (2.67"/68mm). Designed to work with all standard mason jars like Ball and Kerr, this set eliminates the need for separate purchases—saving you both time and money.
【Superior Seal & Leak-Proof】The advanced vacuum membrane at the core of this canning lid delivers a rock-solid seal. Ideal for leak-proof liquid storage (sauces, jams, soup) and keeping dry foods (grains, nuts) fresh—no mess, no waste.
【Compatial with Electric Vacuum Sealers】Designed specifically for the UR ADVANCED 3 in 1 mason jar vacuum sealer and compatiable with most brands in market. Please note: The vacuum sealer machines are sold separately.
【Rust-Proof, Reusable & Food-Safe】Crafted from rust-resistant materials and a BPA-free silicone seal, these reusable lids keep food fresh through fridge, dishwasher or microwave use. Completely food-safe for family meals, baby food and pet treats, they offer a durable, health-conscious way to save money and reduce waste.
【Seal in Freshness】From jams and pickles to meal prep, these jar lids create a bubble-tight vacuum seal to keep food fresh up to 5X longer. Note: For optimal performance, do not remove the air valve—it's essential for maintaining a leak-proof seal during canning and storage.