Designed for use in hardness testing of rocks and minerals, these 1/4" thick glass streak plates are sold as packs of 10. Additional Info: 3" X 2" X 1/4", Glass Streak Plates Pack Of 10 Package Size(L x W x H): 4 X 5 X 5 (IN) Categories: Spot/ Well Plates, Streak HTS Code: 7017.90.5000 UNSPSC: 4.11218e+007 Country Of Origin: INDIA