Iron Open Beading Needle, DIY Jewelry Tools, PlatinumSize: about 10~11cm long, 0.01cm wide.â Material: Made of quality iron material, durable and solid. â Application: These big eye beading needle, fit most sizes and styles of beads, can help you string your bracelets, necklace, or other Jewelry faster. â Easy to use: Compared to small eye needles, these needles, with big eyes can help you thread needle easily, avoiding unnecessary time wasting.