Spira-Flo Brush Tips 500/Bx by Vista SKU 922-1970AA 123 $368.99 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Spira-Flo Brush Tips 500/Pk. Provides superior, controlled delivery of viscous materials, etchants and resins used in most restorative procedures. Tips feature internal spiral channel, curved cannula for optimal entry, and adjustable brush tip fiber length. Designed to minimize bubbles. Nylon brush fiber end for controlled delivery of materials.