Springs – Continuous Roll Continuous roll of springs, in 100 foot lengths. available in the following sizes. 9 gauge [seating grade, firm] 10 gauge [seating grade, medium] 11 gauge [back grade, medium] 12 gauge [back grade, soft] Category: Springs Related products Spring Clip Nails View product Double Coned Springs [8.5 gauge] View product Superloops – Continuous Roll View product Super Loop Springs View product