Review on Qiilu Aluminum Mounting Adjustable Universal Lights & Lighting Accessories for Accent & Off Road Lighting by Juan Simpson

I would like to know if I need to buy a size or two larger than I have. I bought two pairs of 1" clamps to mount the headlights on a new roof rack. My roof rack has 1" OD tube so I assumed the 1" clamps would obviously be to order but I couldn't have been more wrong when they arrived today so I attempted to install them and couldn't even put them on the pipes. On closer inspection of the clips it seems that due to the way they are made you will need to purchase a size or two larger than the actual size required by the application. I seem to need 1.25 or 1.50 clamps for a 1 inch pipe.