آلة حاسبة تعليمية 2 في 1 لتعليم الرياضيات مع شاشة LCD ولوحة كتابة ورسم للأطفال

2XLED Watch Jeweler Repair Magnifier Head-Mounted Headband Adjustable Magnifying Head Eye Glasses Loupe Lens 8X 15X 23X

3X 5X 10X 15X 20X Jewelers Watch Magnifier Tool Eye Loupe Loop Magnifier Magnifying Glass Watchmakers Jewelry Tools Dropshipping

3 Section Extra-long swing Magnifying Glass Lamp with 3Color Adjust LED Lights Reading Table Lamp for Welding Repair Close Work

LED Head Magnifier with 2 LED Lights Hands Free Headband Magnifying Glasses Lighted Magnifying Glasses for Watch Repair Reading

ZnSe Focus Lens USA CVD Lens Dia.12/15/18/20 FL25.4/38.1/50.8/63.5/76.2/101.6/127/160mm for CO2 Laser Engraving Cutting Machine

10~45mm PMMA Plano convex Acrylic Condenser Lens for Zoom Flashlight Torch Bike head lamp spotlight DIY

ED objective microscope eyepiece double bonded convex lens achromatic lens diameter 52mm focal length 200mm 500mm

CO2 ZnSe Focus Lens USA CVD Dia.12/15/18/19.05/20 mm FL38.1/50.8/63.5/76.2/101.6mm for Laser Machine Cutting Engraving Parts

Pocket Loupe Magnifier Foldable Diamond Triplet Jewelers Eye Glass Tool for Jewelry Reading Magnifying Glass

5/10X Magnifying Glass with Light 3 Colors 10 Brightness 28/56 LED Magnifier Lamp for Reading Crafting Painting Close Work