Description: DIY Calculator Production Electronic Kit: Made of ABS shell electronic components, this kit offers stable performance and long service life. It is for welding practice, electronic training experiments, and more. Assemble it for a compact and lightweight calculator that allows you to perform mathematical calculations anytime, anywhere LED Display Homemade Digital Tube Calculator: This calculator DIY kit features an LED display and is for circuit board welding training and electronic projects. Once assembled, it provides a sense of accomplishment and allows you to easily convert the resistance value of color ring resistors. for hobbyists and DIY enthusiasts 51 Single Chip Microcomputer Circuit Board Welding Training Electronic Kit: Get hands-on experience with this microcomputer kit for MCU welding training and experimental practice. The kit is designed with electronic components and offers stable performance, making it suitable for electronic training purposes. Learn and practice welding techniques with this comprehensive kit MCU Welding Training Experimental Practice DIY Welding Project: This DIY electronic kit is for those looking to practice welding techniques and experiment with MCU projects. With a compact and lightweight , this kit allows users to learn and enhance their electronic skills. for hobbyists, students, and anyone interested in electronics Homemade Digital Tube Calculator: Enjoy the satisfaction of assembling your own digital tube calculator with this DIY kit. Made of electronic components, this kit offers stable performance and long service life. for electronic enthusiasts, this calculator allows users to perform addition, subtraction, multiplication, and division calculations with ease Specification: Color: As Shown. Material: ABS,PCB. Size: Approx 14*10*2CM/5.51*3.94*0.79inch. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Includes: 1* Calculator DIY Kit