Manual applicator for single-component sealant of 310ml carridge.                                                   
Chrome-plated full steel gun body,Al alloy trigger.                        
Gun body can revolve by 360 degree.                          
Finger guard on trigger can be skidproof.                                                  
Seal puncture on handle facilitate caulking process.       
6MM steel driving plate.           
Single net weight: 623g.