Description Adopting great quality material, which lets you use it for a very long time. Though it is simple in design, it's so practical when you use it. The excellent workmanship of our product will bring you a good experience. Easy and convenient to install and use, it is a very useful chainsaw screw. Features - Color: Black. - Size: 5.50X1.80X1.00cm/2.16X0.71X0.39 inch. - Material: Metal. - Made of material for a long time and durable use. - It has a simple design, but very practical in use, giving you a good using experience. - It is sturdy, not easy to break, prevents corrosion, surface rust prevention. - Smooth surface and nice polished, neat and generous, so don't need to worry about harming your hand. - The chain tensioner can adjust the chain automatically, avoid manual adjustment.Package list: 1 set x adjusting screws