Specifications:1) Displacement: 51.3cc        2) Fuel tank capacity: 0.55L                                                                             

3) Oil tank capacity: 0.26L                                                                        

4) Max.Cutting Diameter: 20"                                                                                 

5) Chain brake system: Manual/auto6) Chain saw type: 21BP7) Chain tensioner: side                                                                                  

8) Standard bar type size: sprocket 18 inches                                                         

9) Sprocket type: rim    Features:                                                                                                 

brand of accessoties- Walbro carburator, Oregon chain, Carlton Bar if Paypal need add 35$