The Prodec 4″ Flocked Foam Roller are made with a high density foam coated with very short flock fibres the 4″ size is ideal for windows , metal work, skirting boards. Versatile for most Gloss, satin and clear coat paints as they achieve an ultra smooth, mirror like sheen in less time that other rollers Quanity in pack x 10 Use with Gloss,Satin and Woodstain Paints Suitable for use with frames up to 4″ (100mm).