تخصيص 1.56 1.61 1.67 1.74 البصرية CR-39 الراتنج شبه كروي نظارات العدسات قصر النظر طول النظر الشيخوخي وصفة طبية عدسة

480PCS 24Values TO-92 Transistor Assortment Kit (2N2222/S8050/BC337 etc.) in Box for Arduino DIY Electronic Project

1-20pcs Breadboard 400 830 Point PCB Board MB-102 MB102 Test Develop Nodemcu Raspberri PI 2 lcd High Frequency 40pin Dupont Line

DC Circuit Experiment Electronic Component DIY Teaching Training Parts LM317 Continuous Adjustable Power Supply Kit

100/200Pcs 3mm 5mm LED Light Emitting Diodes Assortment Kit Round Diffused Led Circuit Component Assorted Set for Arduino

Robotic Welding Kit LED Light Tube Module Fun Learning Welding Kit Welding Instruction, DIY Enthusiasts

1/5/10PCS Round 3 Turntable Component Fortune CD4017 NE555 Interesting DIY Kit Wheel Electronic Parts

BZX84 Series Zener Diode SMD Type Assorted Voltage 3V–27V Surface Mount Electronic Component 3V0 3V3 5V1 5V6 6V2 6V8 7V5 2V2

Electronic Craft Comprehensive Soldering Practice Board Plug-in SMD Dual-use Novice Soldering Components DIY Production Kit

DIY FM Radio Kit 87.5-108MHz 2x3W Amplifier Bluetooth Speaker with Spectrum Display DIY Electronic Soldering Practice Kit

3Pcs Solderless Breadboard 830 Point Solderless Prototype PCB Board Kit for Arduino Proto Shield Distribution Connecting Blocks