Light Pen Flashlight and a built-in mechanical stage

and a built-in mechanical stage with XY adjustment

making it an excellent resource for study and curriculum development

High-Quality Vaseline: This chemistry kit includes 250g of laboratory-grade Vaseline

and medical facilities

enzyme concentration

Light Pen Flashlight and a built-in mechanical stageIncluded: 1 x Heavy Duty Light Pen Flashlight. Black Color and size of 13cm x 1. 3cm x 1. 3cm Shaped like a pen with clip for you to clip on pants, pockets, backpack and other place. Integration design keeps dust and dirt out, powered by rechargeable battery. Can be used not only for scientific experiments, but its unique small and compact design makes it easy for medical lighting. If you need custom order with different sizes design, please contact