I was using this with a Dyson V10. The clip on the main body broke, so I'm using a different type now. Please refer to the following and confirm compatibility. ・Manufacturer's Description Trigger Lock Power Button Lock Switch Replacement Lock Control Vacuum Cleaner Trigger Fixing Clip Easy Operation Release Your Finger for Home Use V15 V11 V10 V8 V7 V6 SV10FF SV10K Vacuum Cleaner 【Release Your Finger】 With the trigger lock, you don't have to keep pressing the button, making your finger less tired. Just attach the trigger lock to the vacuum cleaner, and you can easily and conveniently clean your house. 【Excellent Design】 The trigger lock uses high-quality ABS material for durability. It adopts colors that match the vacuum cleaner. Also, it is small, lightweight, easy to store, and doesn't take up much space. 【Easy to Use】 With a design that can be controlled with a light press, you can easily use the trigger lock. Simply attach the trigger lock to the vacuum cleaner's switch and lightly press the trigger lock to turn it on and off. There is enough space to easily hold the vacuum cleaner with your finger. 【Wide Compatibility】 The vacuum cleaner trigger lock is specially designed for V15, V11, V10, V8, V7, V6, SV10FF, and SV10K vacuum cleaners. 【Notes】 The trigger lock is not compatible with V11 Outsize, V11 Outsize Origin, SV18 FF, SV 21 FF, DC, and series models.