Surebonder, #6 Heavy Duty 3/8" Staple, 1000 Staples Per Box, For Use With Duo-Fast Models Ct850, Ct859, Xe5018, Ct50 & Ht550 Staple Guns; Ace Models 22084, 22087 & 27175, Black & Decker Models 9700, 9701, 9713 &9715, Craftsman Models 6846,6843, 68423, 68643, 6844, 68447, 68477 & 68471.