We have a very good reason to name this item the Qwiqr ( read: quicker). That's because this clamp is quick. With the Qwiqr you connect your hooks onto a luminaire with only one click. Actually you will not hear one click, but two. Two separate locking switches will provide you the safest lock possible. Two outwards positioned indicators will show you the product is properly double locked and no further attention is needed. The clamp part now is secured by two individual locks. Furthermore, the clamp part is spring loaded to avoid backlash. It's that simple! Disassembly of the parts is even quicker. Push the clamp part inwards into the housing, press both locking switches and slide the hook outwards. The Qwiqr is a further development of the well-known slide and all parts are compatible for use. ? Design registered in the EU