Specifications:  1. Type:  Labor-saving Solder Paste Extruder Tool (Doesn't contain welding liquid; just tools)2. Size:  100x50x30mm3. Material:  Engineering Plastics/Stainless Steel 4. Application:  Circuit Board Motherboard Repair5. Uses:  Syringes are filled with solder paste; tin paste; flux; solder oil and other liquid or paste products. Solve your welding difficulties and uneven smearing. Product Features:  1. Easy to Use:Ergonomic; the handle trigger is ergonomically designed; which perfectly fits the curve of the finger; and the tin is easy and effortless. Metal shaft; extended handle; lever assist; easier tinning. 2. Precise Control:Precision metal screw; advancing 0.75MM per rotation; precise control of the amount of tin.3. Good Frosted Appearance:One-piece molding; high strength of one-piece injection molding; lightweight and beautiful design; easy to store.4. High Quality Material:High-strength engineering plastics; the main gun body is made of engineering plastics; with high hardness; good toughness; not afraid of falling; and long service life. Package list:Type 1: 1 x Syringe + 2 x NeedleType 2: 1 x Solder Paste Solder Oil Effort-Saving PusherType 3: 1 x Solder Slurry Oil Effort-Saving Pusher + 1 x Syringe Barrel + 2 x Needle Header