Wide selection of commonly used springs. Includes: extension springs (13/64" x 13/16", 7/32" x 1", 1/4" x 7/8", 5/16" x 1 1/8", 5/16" x 1/4", 11/32" x 1 27/32", 5/16" x 1 3/4", 11/32" x 7/16", 9/32" x 1 1/2", 9/32" x 2 13/16", 5/32" x 3 1/8", 3/16" x 1 3/4"), compression springs (9/32" x 1/2", 1/4" x 13/32", 3/8" x 3/4", 7/32" x 11/16", 3/8" x 5/8", 23/64" x 1 3/8", 7/32" x 1 1/2", 9/32" x 3/4").