VIGRUE Black Zinc Plated Alloy Steel Flat Washers Set Washers Hardware Assortment 684 Pieces -9 Sizes M2 M2.5 M3 M4 M5 M6 M8 M10 M12 Size Name::684 PCS Alloy steel Amdieu posture corrector works by

Amdieu posture corrector works by training your muscles and spine to return to their natural alignment

Extra-wide 140mm dual-tower design with 6 heatpipes and dual fans provides maximum quiet cooling efficiency on a par with many all-in-one watercoolers

Perfect For Use In Home

Dual chamber design for improved ventilation

Any devices that support Bluetooth like smartphones

VIGRUE Black Zinc Plated Alloy Steel Flat Washers Set Washers Hardware Assortment 684 Pieces -9 Sizes M2 M2.5 M3 M4 M5 M6 M8 M10 M12 Size Name::684 PCS Alloy steel Amdieu posture corrector works byMaterial: Made of alloy steel, good hardness, low temperature strength and corrosion resistant. Size: 9 Sizes of the most commonly used flat washers, M2 M2. 5 M3 M4 M5 M6 M8 M10 M12. Quantity: It contains 9 sizes totally 684pcs, each size comes in a little poly bag organized in a little compartmentalized box. Perfect for having around the house and doing small projects. Functions: Flat washers are mainly used to reduce pressure and friction, prevent