The biohazard symbol was created in 1966 by Charles L. Baldwin of Dow Chemical and Robert S. Runkle of the National Institutes of Health. Thought you'd like to know. Make your bike one-of-a-kind with a custom headset cap: Available in 14 vibrant anodized colors Permanent laser-etching Crisp, grayish-white text/graphics Crafted from lightweight yet strong 6061 aluminum Fits 1 1/8" steerer tubes. Measures 1 1/4" (32mm) wide Compatible with most mountain, road, and BMX bikes Easy installation with a 5mm hex wrench Add a bolt to complete your custom headset cap design (sold separately) Fast production & shipping from Ohio A great gift for any cyclist!
