Specification: Material: Steel Colour: Silver Staples quantity: 2400/7200 pcs(8mm) Suitable Staple Sizes: 4-6-8 mm staples Features: 1.This heavy duty Staple Gun can take 4mm,6mm and 8mm staples and is suitable for a huge variety of purposes(comes with 2400/7200 8MM staples) 2.Ergonomic grip and easy squeeze operation allows for usage with minimum fatigue 3.Handy staple gun for one hand operation 4.It is very labor-saving and obvious in use. 5.Every tool you need for professional or hobby canvas stretching. Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2.We only offer 8mm staples How to Use Tacker: 1.Press the bottom 2.Pull out nail groove 3.Put in suitable staples 4.Push in nail groove 5.Finished Package included:(Your choice) A Set: 1 x *Canvas pliers B Set: 1 x*Heavy Duty Staple Gun 1 x *Staples Remover 7200 x* Free 8mm Staples C Set: 1 x *Canvas Plier 1 x *Staple Tacker 1 x *Staple Remover 2400 x * Free 8mm Staple