Epoxy-coated, steel wire test tube rack resists most solvents, weak acids and bases. Withstands temperatures up to 121 degree C. Holds 24 Tubes, size 16mm. 4X10 Format
KidWind Balsa Blade Sheets, very lightweight and stiff, and it is perfect for making experimental wind turbine blades, for College, High School, and Middle School Science, Pk100