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: Streak Plates, Glass, 2" X 1" X 1/4", Pk/10 Package Size(L x W x H): 3 X 3 X 2 (IN) Categories: Spot/ Well Plates, Streak HTS Code: 7017.90.5000 UNSPSC: 4.11218e+007 Country Of Origin: INDIA