These affordable polypropylene trajectory rods come with interchangeable tips designed to fit either a 9 mm or .45 caliber bullet hole. Size of each rod: 7 1/4″L x 1/4″ dia. Set of four rods
This is a Bluetooth, handheld science datalogger that lets students connect multiple wired and wireless sensors, collect data, generate live graphs, and perform data analysis.
Unit: Pcs
Unit: Pcs
Unit: Pcs
Small, low-priced, cordless battery-powered stereo microscope with LED illumination. Simple design with single 20x magnification, good, sharp optics and 55-75 mm interpupillary adjustment to compensate for differences between the eyes. The small size and a weight of only 585 g makes this stereo microscope very suitable for use in the field and the user-friendly design makes it ideal for smaller children.
