Greenworks 10-Inch 24V Cordless Chainsaw, Battery Not Included 2000102 24V Lithium-Ion Battery compatible with both indoor and outdoor tools, Battery and Charger sold separately 10-Inch bar and chain, perfect for cutting branches and limbs with ease Tool-less chain tensioning for quick adjustments so you can get back to the task at hand Automatic oiler applies oil to the arm and chain to ensure durability and extend the life of the chain Translucent oil tank for clear view of oil level