Free your Finger: No assemble work requested,Just Inserted into the button ,Control the power button on/off lock and release, maintain the on and off status by sliding the switch .resolve the pain of keep pressing the on button when using the Dyson Cordless vacuum cleaner. Free your hand and fingers ,No more finger cramps,make your housework more easier. One Step Control: The new unique One-piece engineering design allow you to secure the clamp by adjusting the thickness of shifting board of power button trigger ,Convenient & Easy to use, you could control the vacuum status by sliding the switch on/off to maintain on/off in one finger while there is enough room to make fingers easy to grip the vadumm cleaner with the Dyson trigger . Widely Compatible: Engineering design for Dyson vacuum cleaner ,Widely compatible Dyson V15,V10,V11,V8, V7,V6 Absolute/Motorhead /V7 Allergy HEPA Vacuum Cleaner (Note: Not compatible with Dyson V11 Outsize, V11 Outsize Origin,and DC Series models.) Stylish Design: Tiny and lightweight, no additional burden for the vacuum cleaner, the gray clamp with the red switch design make it look stylish , the premium durable plastics make it more stably to work with your expensive Dyson cordless vacumm cleaner. Best Dyson cordless vacuum cleaner companion accessories and Gifts choices, Package includes one 30 days Warranties guantites, Free change or return if you have any question.