Arrows 1/4 in. heavy duty wide crown staples have a 1/4 in. leg length. They are intended for use in the following: Swingline/Desa models 800, 800X, 900, 1000, 10060, 31600, 31800, 34201, 34302; Mastermechanic models 174839, 345025, 136150m TRE-50MM, TRE-300MM; Sears Craftsman models 68477, 68418, 6843, 3846, 68642, 68423, 68471, 68481; Stanley Parker models: TR70, TR75, TR80, TRE100, TRE50, TRE200; Ace Hardware models: 22084, 22087, and 27175; and Black & Decker models: 9701 and 9700.