Science microscope 450X refined scientific instruments toy set,it's quite sturdy for a starter kit and the magnification actually allows children to see quite a bit.Ideal gift to arouse children's interest to explore nature. Microscope kit contains ☺ 1 x microscope ☺ 1 x plastic containers ☺ 4 x blank label ☺ 2 x plastic speciment ☺ 2 x collection bottles MICROSCOPE OPERATING INSTRUCTIONS: ❤ Open the batteries compartment door after unscrewing the protecting screw. ❤ Insert two AA batteries, as directed in the compartment's bottom. ❤ Put back the protecting screw. ❤ Lift the nose piece as much as possible with the upper wheel. ❤ Put a slide with the tissue or organism you want to observe on the tray,and fix them under the two blockers. ❤ Point the light up, and switch it on. ❤ Set the sharpness with the upper wheel, and adjust the eyepiece to your eyesight by turning it gently. ❤ Adjust the light intensity with the lower wheel. Too much light can crush some low contrast details. ❤ Be careful, when going from the smallest to the largest magnification, lift the tube to avoid hitting the tray. ❤ Microscope when not in use,cover the tube cover in multiples of cylinder cover. ATTENTION: Without anything on the objective tray, don't look down the eyepiece when the LED light is lighted. If you have any problem about product, please feel free to contact us!