Rayson SR379BK Spiral Binding Coil 5/16inch Black Coil bindings Ring 7.9mm 3:1 Pitch 100/Box workwarehouse It will work well with

It will work well with either the LAYEN i-SYNC or LAYEN i-DOCK (see comparison table above)

titanium coating increases the ware-resistance and durability of the drill bit

1Pcs C gear

Do not too loose or too tight so you can enjoy high-quality sound

Connect to the PD output port The device can be charged with a maximum output of 18W

Rayson SR379BK Spiral Binding Coil 5/16inch Black Coil bindings Ring 7.9mm 3:1 Pitch 100/Box workwarehouse It will work well withRayson SR379BK Spiral Binding Coil 5 16inch Black Coil bindings Ring 7. 9mm 3: 1 Pitch 100 Box 3: 1 Pitch Spiral Binding Coil Rayson plastic spiral binding spines consider all the uses, with 100 coils ensures long term productivity for all of your binding projects. Coil bindings lie flat for easy reading, with 360 degree rotation capability for added convenience. Spines are designed with a 3: 1 pitch, which equates to 3 holes per inch. They are