Knockout Accidents Hard Hat Sticker Available In2 1/4" Diameter - 10 Pack Choose Your Options SKU: SC151389 Enter Quantity Add to cart Add a Bookmark Price QuantityPrice for 2 1/4" Diameter - 10 Pack 1 +$6.99 Description Text Description Remind workers and readers that accidents are avoidable! SafetyCal hard hat stickers are crafted with conformable vinyl that leaves no bubbles or creases behind on curved surfaces. Stickers are 2 1/4" in diameter and come in packs of 10.