200PCS Spring Assortment Kit 20 Different Sizes Mini Zinc Plated Steel Compression and Extension Springs for DIY Repair Project K-P-038 sold2026 4mm ~ 22mm (inside diameter)

4mm ~ 22mm (inside diameter)

Freely Angle & Comfortable Wearing180 rotatable ear-hook and 270 flexible boom mic can be adjusted and rotated make it friendly to fit a wide range of right/left ear shapes

clean removal

5 per inner 50 per case

200PCS Spring Assortment Kit 20 Different Sizes Mini Zinc Plated Steel Compression and Extension Springs for DIY Repair Project K-P-038 sold2026 4mm ~ 22mm (inside diameter)200PCS Spring Assortment Kit 20 Different Sizes Mini Zinc Plated Steel Compression and Extension Springs for DIY Repair Project K P 038 Product Features PRODUCT FEATURES: All the springs are neatly packaged in plastic storage boxes, convenient to carry and use. The springs has smooth surface, good strength, strong ductility, durability and tension WIDE APPLICATION: Widely used in doors, curtain, automobiles, bicycles, mechanical devices, umbrella,