combination: For you to store these when you 't , no more losing or worry about they are when you want to Long service life: our engine adapter is made of quality and durable material, which means it has a long service time and you 't need to change it frequently work efficiency: using electric drill bit adapters can your work efficiency because you can work by pushing the button and then saving your precious time and energy, which is very suitable for your daily Simple to operate: without spending lots of time learning how to our drill bit adapter, you just need to add it to your drill or other electric handheld equipment; Moreover, there is no need of other machines or to help you to assemble it, you can install it just by handWide range of applications: our engine adapters can be applied to various occasions and equipment, and they are with trimmers, leaf blowers, garden cultivators, and other handheld equipmentcolour:Black+redMaterial:Metal + plasticPackage Contents:4 x bags(The style is random, you cannot the specified style)4 x Engine Drill Bit AdapterOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.