Arrow Fastener T50SA Screen Attachment for T50, T50PBN, T55 Staple Gun Handy T50 staple gun accessory Great for use on window screens, porch and patio screens, cloth, canvas, upholstery, netting, etc. Also designed to "piggy-back" one staple over another with flared-out legs Genuine Arrow screen attachment Built for use with the for T50, T50PBN, and T55 staple guns Made in the USA