These brushes have now been renamed Prodec Contractor and can be found here  Budget paint brush for non critical painting jobs. Far better quality than cheap and nasty throw away paint brushes. 50% Black Polyester (PET) and 50% pure black bristle mixed filling. Rust-resistant ferrule and fixings. Comfortable American style plastic handle.

• Mixed pure bristle and polyester fill.
• Tipped and flagged for a reasonable finish.
• Chisel edged head for ease of cutting in.
• Rust resistant ferrule and fixings.
• Comfortable American Style Plastic Handle.

Also available in a 6 piece brush set (see links on right hand side of page).

You can find other similar products in these categories Paint Brush and Varnish Brushes, and Paint Brush and Varnish Brush Sets.