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thermoplastic elastomer seal and integral inhalation/exhalation valve ensures greater wearer comfort and acceptance
Premium Quality: Magnetic Fun Arabic Alphabet Letters is made of high quality
deoxyribose and phosphate groups
Cherry Red and Yellow
The apparatus is designed for comparing rates of absorption or evolution of gases by small organisms
Elementary School Balance Classroom Kit thermoplastic elastomer seal and integralThis all purpose balance covers your balance requirements from Grades 4 10. Molded from high impact polystyrene, this durable and accurate balance has a capacity of 2000 g and is readable to 1 g. Features a zero adjust knob and two removable 10 cm square pans. Activity guide included.
US$ 12.80
US$ 15.97
US$ 11.97
US$ 15.99
US$ 12.99
