2,500-pc assortment of Heavy-Duty 27/64 in staples. Heavy-Duty 27/64 in. Fits Stanley TR110, TR150, TR150HL,TR250, TRE550, PHT150, PHT250 PHT350 and Arrow T-50. 336 pcs of 1/4 in TRA704, 504 pcs of 5/16 in TRA705, 504 pcs of 3/8 in.