Wheel for opening and closing construction barriers. It installs easily at the base of the barrier on tubes with a diameter between 40 and 50 mm, with 42 mm being the most common diameter.
To do this, simply tighten the nut to crush and hold the barrier in place.
The wheel also comes with a tightening key and adapters for smaller tubes. The material is hard rubber with sealed ball bearings and indestructible nyl stop nuts.
Very high-quality product with ball bearings, which is incomparable to the usual classic white wheels that tend to be noisy and roll poorly!