The invention is directed toward a spring which may be used in cushions, {HEAD ~ mattresses} or box springs, which includes {TAIL ~ a internal limiting member} which assists in limiting the longitudinal compression of the springs, which in one embodiment are plastic 
The invention is directed toward a spring which may be used in cushions , { HEAD ~ mattresses } or box springs , which includes { TAIL ~ a internal limiting member } which assists in limiting the longitudinal compression of the springs , which in one embodiment are plastic
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