Discover the future of aerial safety. Designed for efficiency and sustainability, our marker balls significantly reduce assembly time and environmental impact, ensuring superior visibility and safety for high-voltage power lines and other aerial hazards.




Our aerial marker balls are uniquely engineered for a swift and easy installation process. With pre-assembled half-shells and a quick-release fastening mechanism, they reduce assembly time by 70% compared to competitors, saving significant costs and reducing helicopter usage.



than just high-voltage power lines, our marker balls are perfect for a variety of settings, including mountainous supply lines, lift support lines, and navigation pylons. This adaptability makes them an essential safety tool for a wide range of aerial marking needs.




Catering to diverse requirements, our marker balls come in two sizes (300mm and 600mm) and can be ordered in standard colors or custom shades for bulk orders. Their design accommodates various cable thicknesses, ensuring suitability for different applications.


our marker balls are predominantly made from recycled materials, including fully recyclable aluminum jaws. We're committed to sustainable practices, from production to our innovative 'Back-to-the-Roots' recycling program.


Unlock the potential for significant savings with Sphera. Designed to reach maximum cost-effectiveness, the Sphera marker helps you achievefinancial and time savings through our innovative solution.
Sphera Markers can be used on ropeways, around airports and bird sanctuaries and last but not least of course on powerlines to add visibility and increase safety.






Sphera aerial marker balls are crafted from high-quality, solid-colored ASA material. This choice ensures robustness, longevity, and resistance to harsh weather conditions. The main body, comprising 97% of the marker ball, is made largely from recycled ASA, reinforcing our commitment to sustainability.
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At Sphera, we believe in fostering strong, global partnerships. Our innovative aerial marker solutions are trusted worldwide, from the mountains of Switzerland to the deserts of the UAE.
Fordonsvägen 17, 55302 Jönköping, Sweden
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ul. Sepolowskiej 16/6, 43-300 Bielsko-Biala, Poland
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Prot Stabelsvei 22, 2021 Skedsmokorset, Norway
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403C, Wing B1, Marathon Innova, Opp Peninsula Corporate Park, Lower parel, Mumbai 400013, India
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G.05171 Union Road Surrey Hills, VIC 3127 Australia
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Market Overton Industrial Estate Ironstone Lane, Market Overton, Oakham, Rutland, LE15 7TP, England
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Ebnatstrasse 150, 8201 Schaffhausen, Switzerland
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via Leonardo da Vinci 15, 24060 Carobbio degli Angeli (Bergamo), Italy
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Mosdorfergasse 1, 8160 Weiz
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MS-Design-Straße 1, 6426 Roppen
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