The SICHTKRAFT Wind Flag complies with IBU (International Biathlon Union) specifications.
The ground spike is made of aluminium and it is painted matte black. That way, there are no irritating reflexions and the shooters are not distracted. The ground spike is adjustable in height and it is available in two different sizes, 60 - 105 cm and 95 - 170 cm. This gives you the chance to compensate for uneven ground and have the height of all wind flags perfectly leveled.
The cantilever arm which holds the flag is made of stainless steel and it can rotate freely. A sliding disk made of weatherproof PVDF (Polyvinylidene fluoride) ensures the response of the flag to even the lightest winds. It also prevents distracting squeaking or friction noises in general.
All the small parts are made of stainless steel, too, just like the cantilever arm. So the product is 100% corrosion free.
The wind flags themselves are made of polyester fabric, ideal for outdoor use. The weight of the fabric is according to specifications less than 5 g. The wind flags are sold individually as spare part and can be replaced easily.
As of July 2018, the Biathlon Wind Flags are sold with a stainless steel hanger instead of a grommet, so that the flags will hang straight. On some product images and the video, the old version with the grommet is seen, but it's not shipped like that anymore.
