These lab-grade cork stoppers come in a variety of sizes and are made from natural cork material. Each stopper is made of high-quality, natural cork from Portugal.
Follow this link to see our Cork Stopper Size Chart.
PRODUCT WARNINGS
This product contains small parts, making it a choking hazard. Only use with adult supervision.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.