The Arrow A505IP T50 Heavy Duty Staples are suitable for use with a range of staplers The Arrow T50s heavy-duty staples are the worlds best-selling heavy-duty staple. The A505IP are suitable for use with a number of different staplers. Universal fit with Dewalt, Bostitch, Stanley, Surebonder, and other brands that use T50 (5/16\", 8mm) staples. Delivering exceptional holding power in fabric, plastic, cardboard, roofing felt, house wrap, upholstery, valances, headboard coverings, shelving etc. Features: Best for fabric, plastic and cardboard Used for all heavy-duty stapling applications The world\'s best-selling heavy-duty staple platform Universal fit will also work with Stanley, Dewalt and Bostitch staplers Specification: Pack Qty: 5000 Size: 5/16\" (8mm)