Material: This product is made of high quality aluminum material and finely machined to make it durable and sturdy. Packing: Set of 3 pcs bubble paddle tools, the size of the roller head is separately 50mm x 10mm, 70mm x 21mm, 50mm; the length is about 310mm. Green and efficient: In the production process, this bubble paddle tool is able to save resin, save time and money, and improve construction efficiency. Application: Widely used in FRP industry, it is generally used for rolling and perforating inside and outside of the product. Function: It is used to level and compact the resin coating and dispel air bubbles to improve the strength and flatness of FRP. It is an economical and practical hand laying tool in the production of fiberglass. This item is made by mechanical finish of aluminum alloy, durable to use. It is used to improve the strength and flatness of glass steel. In the process of products, it can save resin, save time and cost, improve construction efficiency. Widely used in industrial glass steel production, to level and compact the bubble driven by the resin coating, commonly used for the perforation of internal and surface blister rollers of products. It can also effectively improve work efficiency and product quality. Features: Made by mechanical finish of aluminum alloy, durable to use. Used to improve the strength and flatness of glass steel. In the process of products, it can save resin, save time and cost, improve construction efficiency. Widely used in industrial glass steel production, to level and compact the bubble driven by the resin coating, commonly used for the perforation of internal and surface blister rollers of products. Can effectively improve work efficiency and product quality. Specifications: Condition: 100% brand new Material: aluminum alloy + ABS Total length: approx. 31cm / 12.2inch Roller Head Length: Approx. 50 mm / 2.0 inch, 75 mm / 3.0 inch, 50 mm / 2.0 inch Product weight: approx. 323 g