Certified Crane Operator Hard Hat Sticker Available In2 1/4" Diameter - 10 Pack Choose Your Options SKU: SC151366 Enter Quantity Add to cart Add a Bookmark Price QuantityPrice for 2 1/4" Diameter - 10 Pack 1 +$6.99 Description Text Description Allow certified crane operators to be easily identified by other personnel. 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.