Pack of 20 Heavy Duty Glass Test Tube without Rim Earth Worm Model Made up of 60% viscose

Made up of 60% viscose and 40% cotton

Game pieces

and wire connectors for either binding terminals or alligator clips

anatomy classroom

Premium Quality: Resistance Box is made of high-grade construction all the way through

Pack of 20 Heavy Duty Glass Test Tube without Rim Earth Worm Model Made up of 60% viscoseIncluded: 20 x Heavy Duty Glass Test Tube without Rim, Rimless + Round Bottom + Borosillicate 3. 3 Glass. 75mm Length x 12mm Diameter. Premium Quality: Glassware is made of high quality, heavy duty, Borosilicate 3. 3 glass. Autoclavable, with superior chemical durability. Low temperature gradient can withstand high temperatures & thermal shocks. Designed for use in professional laboratories but is an ideal choice for science classrooms and household