Compatible With: FOR Coil Roofing Nailer NV45AA NV45AB NV45AB2 NV45AB2(S) NV45AES NV50A1 NV50A1M NV50AP2 NV45AB2M NV45AE. These parts install quickly to make your nailer work like new again. This is A -new, unused, unopened, undamaged item. Material: Metal colour: As Shown Package Contents: 2 x 883901 Feeder replacement part 2 x 877-761 Feeder Spring 2 x 877-825 Feeder Shaft 2 x 877-826 collar 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.