Epoxy Polyester Laminating Roller Set And Fiberglass Parts 4 Pcs : Material: Adopt aluminum materials and made by machining, precise balance of glass and resin without air pockets, durable and sturdy to use Function: Used to remove air bubbles from lamination, leveling and compacting the resin coating into driving bubbles, and you just never know when you might use a random tool for something other than a designed purpose to save the day These aluminum rollers set the industry standard for durability and ease of cleaning. Plastic handles are solvent resistant for easy cleaning Application: Widely used in the production of glass fiber reinforced plastic and the inner surface of the bubble roller puncture 4pcs Fiberglass roller set: 1x larger diameter 5 inch, 1x larger diameter which has deeper grooves for thicker laminate winding, 1x smaller diameter soothes more numerous small bubbles on thinner laminate, 1x corner for venting at key fillets and corners Specification: Size: 50x13mm/1.96x0.51inch 20x75mm/0.78 by 2.95 inch 10x50mm/0.39x1.96inch 12.5 x / 0.49 x 4.92 inches contains: 4 pcs. A set of laminating rollers with fiberglass resin