Stanley's Standard Aluminum Staple Gun uses STANLEY Type-G heavy-duty staples measuring 6 mm to 14 mm and incorporates an anti-jam mechanism for smoother, more consistent fastening. The visible staple window makes it easy to monitor staple levels, while the integrated handle lock supports safe storage and transport. A soft-grip handle improves handling comfort, and the belt clip provides convenient access while working. This unpowered aluminum stapler is a practical choice for construction, maintenance, upholstery, and general fastening tasks.