Avery Dennison Natural Heavy Duty Tagging Fasteners. Avery Dennison Natural Heavy Duty Standard Paddle Swiftach Fasteners stand up to even the most demanding applications. They can be applied with any of the standard tools and needles. (The 08913 needle is recommended for heavier applications.) 1" fasteners (25mm) Filament length : 0.79" (20mm) 50 fasteners per clip, 100 clips per box (5,000 pcs.) Used with most standard tagging guns. Will not work with Fine-Fabric tagging tools. Avery Dennison Natural Heavy Duty Tagging Fasteners. Avery Dennison Natural Heavy Duty Standard Paddle Swiftach Fasteners stand up to even the most demanding applications. They can be applied with any of the standard tools and needles. (The 08913 needle is recommended for heavier applications.) 1" fasteners (25mm) Filament length : 0.79" (20mm) 50 fasteners per clip, 100 clips per box (5,000 pcs.) Used with most standard tagging guns. Will not work with Fine-Fabric tagging tools.