An almost perfect imitation of squirrel has been achieved with this synthetic alternative. Blick Master Synthetic Squirrel Brushes offer extraordinary softness and a capacity to retain fluids equal to that of natural squirrel. For use with watercolors, they have short handles. Lifetime Guarantee — When properly used and properly cared for, Blick Master Series brushes will last a lifetime. If at any time you are dissatisfied with the materials or performance of a Master Series brush, you may return it to Blick for a replacement. Note — These brushes may have either a silvertone or goldtone ferrule.