Hach Classroom Drinking Water Testing Kit Blue plastic case with black handle and two fasteners on case front; case opens to reveal a white plastic insert with indentations for individual testing kits; the upper left corner has the aerobic bacteria kit in a white cardboard box; box has eight plastic bottles with white screw tops; bottles have multi-colored indicator plates lodged in them; bottles sit in a white plastic insert; kit comes with instruction pamphlet; in the bottom left hand corner of the case is a plastic graduated cylinder with a pop lid; in the bottom right hand corner is the hardness kit; in the cardboard box is a plastic bottle with titrant solution, a glass bottle with black plastic stir rod, and a powder reagant in a glass bottle; in the middle of the case bottom is the alkalinity kit; kit is in a blue plastic case secured by two black plastic fasteners on each side; top comes completely off; kit includes instruction manual, glass bottle, glass test tube, brown plastic bottle of sulfuric acid, and packets of phenolphthalein and red indicator powders; in the upper right hand corner of the case are four brown plastic bags with materials for iron, nitrate, chlorine, and pH testing; overall kit comes with two instruction books. Kit designed and sold by the Hach Company.