WORKING PRINCIPLE: The pressure sandblasting kit is used to inject sand into the water system for cleaning. Use dry silica sand, baking soda or washed river sand for better results. APPLICATION: The pressure washer sandblaster kit is mainly used to remove rust, graffiti, paint and grease baking, and is perfect for household and abrasive cleaning! HIGH-QUALITY PERFORMANCE: Sandblasting kits are made of durable materials, brass and stainless steel, which are resistant to corrosion, abrasion, and stable performance. working pressure can reach 5000PSI and the temperature can reach 60 / 140 F. EASY to USE: 1/4 inch quick connector on of a , suitable for most pressure washer. size:Tube length: Material:Metal + plastic colour:Silver + red Package Contents: 1 * Hose 1 * Pressure Washer Wand (water input) 1 * Sand Wand(sand input) 4 * Hose 4 * Ceramic Nozzles 2 * Rubber Bands 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.