No. 19 fine wire staples are designed for use in the Rapid R23 and R19E Staple Guns. Perfect for securing thin materials in light-duty work and decoration such as fabrics paper and labels. Crown width of these 19/8 staples is 1/2 (12.7mm) . Leg length is 5/16 (8mm) .
Like all the ESSELTE CORPORATION products, this one does not disappoint. It's more expensive than other brands, but what you get is a good solid all around staplers & supplies.