Enhance your organic gardening experience with our 5 Pcs S-Shape Air Locks With Silicone Rubber Stopper & Grommets, perfect for creating handcrafted botanical tinctures for people and plants. Designed to maintain an optimal fermentation environment, these air locks ensure a seamless and hassle-free process. The silicone rubber stoppers and grommets provide an airtight seal, preventing contamination and preserving the purity of your botanicals. Suitable for outdoor gardening or indoor gardening, novice and experienced gardeners, these durable and easy-to-use tools are a must-have addition to your toolkit.