8" Hardwood Fender Brush - Yellow Plastic

You have two fender brushes TEMPICO and TEMPAFIL. Witch is best for getting over and around 150 year-old headstone garnishment. Also flat area.

Tampico is a natural fiber which is the softest of the scrub brush options. It's a bit harder to clean after using than the synthetic fibers. 
Wood Handle Tampico - https://atlaspreservation.com/products/fender-brush-short-handle-tampico
Plastic handle Tampico - https://atlaspreservation.com/products/fender-brush-short-handle-plastic-tampico

Tampafil is a synthetic fiber that is a little more firm than the natural bristle tampico. It's easier to clean as the bristles will not absorb as much.
Plastic Handle Tampafil - https://atlaspreservation.com/products/8-fender-plastic-fender-brush-tampafil