Inner packs dimension (L*W*H CM): 37.8*8*32.5

It is used to do chemistry grouping experiments in middle school, such as: pump and property of oxygen, purification of crude salt, preparation and property of carbon dioxide, estimation of size of permanganate ion, preparation of percentage concentration solution, property of acid, property of alkali and salt, identification of substances and measure of acid-base property of soil, water quality and beverage.