If you have not come across the Squirrel wheel safety device then you are missing something. Such is the simplicity of the design. It is just a piece of metal shaped as in wire and easily fitted as the device comes in one piece. The device drapes around the lug nuts which hold the wheel in place. If at all the lug nuts become loose (the possibility of it happening with the Squirrel in place is almost zero) sensors will light up indicators on the truck. The design is simple and effective that it boggles the imagination that such a simple thing is the ultimate wheel safety device.
The metallurgical properties of the wire are astounding. It is just that flexible to allow the fingers to drape it but at the same time it is very strong. It is reminiscent of the ancient Roman aqua ducts with its stone arches. The central stone at the top of the arch is where the magic of structural integrity happens. Simple, elegant and effective even to this day – the Aque Virgo sources water to the world-famous Trevi fountain. This design also led to Romans constructing stone pillar bridges over most major rivers in Europe and Britain.
The Squirrel is named after a small animal which is a tree-dwelling rodent. Like the animal the Squirrel device is small and works all year round 24×7. The device works in the background just like the rodent gnawing its way through nuts and foliage. On a truck this is the safest and least expensive device that provides peace of mind.