The ESI Extra Chunky Grips are 100 silicone for superb comfort and nonsticky grip in wet or dry conditions Reduce hand numbness fatigue and arm pump UV resistant nonporous withstand severe temperatures and will not harden or fade Grips adhere to the bar and will not throttle These grips are washable just remove and reinstall using rubbing alcohol or Windex The ESI Extra Chunky Grips are recommended for riders wanting an EXTRA Chunky grip

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