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A New Approach To Steel Starter Bar Safety!

WISA block is a new safe and efficient way of protecting against impalement and the threat of other serious injuries posed by exposed, or poorly protected steel starter bars on concrete substructures.




  • 80% reduction in application times compared to individual rebar safety caps
  • Fully patented design – Tested to OSHA requirements with 114kG from 3m height (Blocks at 1.5m centres)
  • Innovative clamp design fits 10mm – 32mm rebar sizes
  • Ready and simple to use
  • One size fits all (10mm – 32mm)

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