[Introduction] Nailer feeder spring numbered 877761, works on coil roofing nailer, 20 items in package. [Function] Work to replace the broken or worn-out springs, adjust the flexibility of the roofing nailer, provide efficient work. [Compatible With] Fits for Coil NV45AA, NV45AB, NV45AB2, NV45AB2S, NV45AE, NV45AA, NV45AB, NV45AB2, NV45AB2S, NV45AE. [Material] Made of high quality metal, use durable and anti-corrosion materials to longer service time. Colour:black-silver Material:Metal Package Contents: 20 x 877761 Nailer Feeder Springs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.