Prime-Line products has compression springs from Prime-Line are constructed from 0.091-gauge, heat-tempered, spring steel wire plated in a bright Zinc finish. They offer superior strength and long lasting tension. These springs measure 1-1/4 inch in length by 11/16 inch in diameter and can be used on toys, equipment, tools and for a variety of other household applications. Two springs included per package44.7 lbs. maximum safe loadMade from spring steel11/16" X 1-1/4"Nickel Plated