Good Helper for Fiberglass Projects: Fiberglass roller set is the nice choice for getting bubbles out of freshly laid fiberglass resin and the helpful items for getting a smooth finish on a patch in your home improvement project.High Quality Material: Adopt of aluminum alloy materials and made by machining, a precise balance of glass and resin with no pockets, durable and sturdy to use. Function: Used for removing bubbles from lamination, leveling and compaction of resin coating to drive bubbles, and you just never know when you can use a random for something other than the designed purpose to save the day.Colour: black + silverMaterial: aluminum alloy + plasticPackage Contents:5 * roller Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.