Applicable to box manual sandblasting machine and box type automatic sandblasting machine. Can be used for sand glass,sandblasting,surface polishing processing,machinery parts A blast nozzle accelerates the air and abrasive as the mixture exits the end of the hose The taper and length of the nozzle's inlet and outlet determine the pattern and velocity of the abrasive exiting the nozzle The composition of the liner material determines its resistance to wear Colour:silver Material:Aluminum Alloy + Boron Carbide Size:Boron Carbide Nozzle: 35 x 20 x 6mm Package Contents: 1 x Air Sandblaster 1 x Boron Carbide Nozzle Only the above package content, other products are not included. Note: Light 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.