40Pcs 1/2" ID Spring Band Type Clamps, Fuel Hose Clamps Fasteners, Black Spring Hose Clip for Fuel Hose Line Water Pipe Air Tube Silicone Hose (12mm)

Nice quality clamp but to small for 1/2 i.d. vinyl hose. Will probably use on lawn mowers.

Works well

fit and function is good

Maybe this bag was mis-packaged, but the diameter is absolutely not as described. Fully expanded, the OUTER diameter of these is ALMOST 5/16". Absolutely useless. Advertised as 5/16" INNER diameter. I'd give ZERO stars if it were possible. These traveled halfway across the world to sit in a dark corner of my parts bin for the next 20 years.

These hold on well

I bought the 10mm black ones. Out of the bag they measure about 9.9mm-10mm (.39 inches) in their free state. I used pliers to squeeze it as far open as I could 2 or 3 times and it did not break. However, it didn't return to its original size either. It now measures about 10.4mm to 10.7mm (.41 to .42 inches). Fully open is about 12.2mm (.48 inches).I also bought the 8mm (5/16") yellow zinc ones. They measure 7.9mm (.31 inches) give or take in the free state. Fully open is about 9.7mm (.38 inches). Again, the piece I tested did not break. After squeezing it now measures about 8.4mm (.33 inches).I would recommend that you don't squeeze them fully open if you can help it so that they don't stretch as much.I've got some 3/16" I.D. - 5/16" O.D. Oregon brand yellow fuel line. It measures about 7.9mm O.D. (.31 inches). If I use this tube on a barb meant for 3/16" I.D. tubing the 8mm spring clamp will probably be correct. If I stretch this tube over a barb for 1/4" tubing then the 10mm clamp will likely be the one to use.

These clips work great for adjusting the distal length of the plastic clips for Hex antenna wire supports. They fit 11mm tent poles great. If you are building a MM0OPX design portable Hex, these are what you need.

I bought these clips to hold my Martin gourds on the aluminum rods. They work better than the plastic stars that come with the gourd hangers.