Practical Usage : Paddle Tool Used for removing air bubbles from lamination, the fiberglass roller tools kit is for getting air bubbles out of freshly laid fiberglass,leveling and compaction of resin coating to drive bubbles.enhance the glass steel strength and flatness. Material Saving : In the process of products, it can save resin, save time and costs, improving construction efficiency.Convient your Work and SAVE your money and energy. The larger diameter has deeper grooves for thicker laminate and relieves bubbles on a thinner laminate. Wide Application: Fiberglass Roller Tools Widely used in industrial production of glass steel, for leveling and compacting the resin coating driven bubble, commonly used for products' internal and surface blistering roll puncture. Durable: Manufactured by mechanical finishing of aluminum alloy material,durable to use,It works well to improve labor efficiency and product quality.