Mini Pocket Spring Unit with Steel Border Wire Frame Non-Woven Fabric Pocketed Coils for Sofa Cushion Insert OEM ODM Custom Product Specifications Product Name Micro Pocket Spring Unit Material High Carbon Steel Wire Wire Diameter 1.0mm-1.8mm Head Diameter 3cm Middle Diameter 3cm Height 2cm-5cm Turns 4-7 Turns Coils Counts According to the demand of clients Zone 1/3/5/7 (Customized) Woven Fabric 65-100g/㎡ Or Can Be Customized Size Any Size Available Color White, Blue Or