1.plastic spring clip used for sofa parts 2.corlor:white and black 3.distance: ... ,seat spring,no sag spring,belong to sofa parts plastic spring clips(sofa parts), zigzag spring,no sag spring,sinuous spring, ... coil spring,zig zag spring,sofa spring,seat spring,back spring belong to sofa ... loose cushion upholstery. plastic spring clip for sofa parts