Place of Origin: Fujian,China (Mainland) Load Type: Compression Style: Waved Material: Steel Usage: Furniture Function: make mattress edge firm Mattress Edgeguard, also called edge support spring, or butterfly spring as it seems like a butterfly type. mattress edgeguard spring can give spring unit a good support on edge, mattress will not be easily flat when body seating on the mattress edge. Edgeguard gives edge to edge greater support for durability and comfort. Mattress Edgeguard has been presented above, want more similar products, please click edgeguard spring,mattress edgeguard,mattress support spring. Category: Support Springs Related Category: Bonnell Springs