Shurhold 10" Extra-Soft Deck Brush - Blue Nylon Bristles. The softest deck brush available. This brush is designed to be used on isinglass plexiglas and other delicate surfaces. Extra Soft - blue nylon bristles made especially for delicate surfaces Specifications for Shurhold 10" Extra-Soft Deck Brush: Manufacturer: Shurhold Size: 10 in Color: Blue Package Contents: Shurhold 10" Extra-Soft Deck Brush Shurhold 975: 10" Extra-Soft Deck Brush - Blue Nylon Bristles