These grade XXX tapered cork stoppers are an excellent choice for general laboratory use. They are effective for both liquid and solid mediums, and offer light weight, resilience and compressibility. Chemically inert and moisture resistant. Sold as packs of 100. Additional Info: Cork Stoppers, #20, Pack Of 100 Package Size(L x W x H): 12 X 12 X 4.5 (IN) Categories: Stoppers & Corks, Cork HTS Code: 4503.10.6000 UNSPSC: 6.0124e+007 Country Of Origin: INDIA