500 pcs Black Plastic Washers Lock Washers Fasteners, Self-Locking Washer Assortment Mechanical Washer M2.5 M3 M4 M5 M6 Exfoliating Bath Sponge **Sleep Temperature Control Technology** -

**Sleep Temperature Control Technology** - **Constant Temperature Range**: Intelligently regulates perceived temperature between 26-33°C via hollow fiber structure

easily peel off backing

Use: Compressing security doors

with no harm to ‌body‌ and comfortable to touch

500 pcs Black Plastic Washers Lock Washers Fasteners, Self-Locking Washer Assortment Mechanical Washer M2.5 M3 M4 M5 M6 Exfoliating Bath Sponge **Sleep Temperature Control Technology** -PERFORMANCE: The lock washer can increase the contact area between the bolt or nut and the surface of the workpiece, reduce wear, friction and rotation resistance, avoid falling off QUALITY: Nylon and plastic, good insulation, wear resistance, corrosion resistance, strong and durable USES: Used in semiconductor, automotive, aerospace and interior decoration fields Quick repair of electrical connections, household and commercial equipment, automobiles,