Sol-u-Flo Prebent Tips, 19 Ga, Black, 100/Pk, 312200About this product Works well with a caries indicator Curved cannula facilitates optimal entry Nylon bristle end controls delivery of solution With universal luer lock hub Sol u Flo pre bent applicator tip is made ideally for use with a caries indicator. Its unique adjustable brush fiber length and curved cannula support optimal entry. With its nylon bristle end, there is better delivery control of solutions. Sol u Flo comes with a universal luer lock