Portable Mini Chainsaw, Upgrade 4in Lightweight Electric Cordless Chainsaw with Anti Splash Board, Handheld Pruning Shears Chain Saws, for Courtyard Garden Tree Branch Trimming Wood Cutting HEAT DISSIPATION DESIGN Timely heat dissipation to avoid burning out the motor, overload protection design. SECURITY BUTTON Prevent the motor from starting accidentally and protect the safety of workers. 2PCS SHARP SAW CHAINS Fine quality guide plate chain, deep quenching, more wear-resistant, smooth cutti