Independent Sofa Pocket Spring Coil Unit for Superior Seating Support and Durable Furniture Core Product Descriptions Product Name Pocket Spring Of Sofa Inner Spring Unit Material High Carbon Steel Wire Wire Diameter 1.0mm-2.3mm Head Diameter 4-6.5cm Middle Diameter 4.5-7.5cm Height 6-25cm Turns 4-7Turns Coils Counts According to the demand of clients MOQ Negotiate Woven Fabric 65-100g/㎡Or Can Be Customized Size Any Size Available Color White, Blue Or Customized Packing