Crafted from recycled polyester with a bonded dense weave, these Drosophila narrow vial plugs are designed to provide exceptional performance and reliability. The material creates an excellent barrier against mite infestation while offering superior breathability to maintain an optimal environment for your specimens. The reduced evaporation ensures food remains fresh longer, supporting healthier cultures. Unlike cellulose acetate, these plugs do not retain moisture in humid conditions, making them ideal for consistent lab performance. Engineered for precision using proprietary dies, these plugs deliver a consistent fit with minimal waste. Their strong, durable construction eliminates clinging fibers and prevents breakage, offering a longer-lasting alternative to traditional options. Proudly made in the USA, these plugs are the perfect choice for labs seeking premium-quality closures for narrow vials. Packaged in a case of 1000, they are ideal for high-volume use.