Bristle Test Tube Brushes Set, 10 Pack, Size Assorted

The bristles of this test tube brush are of good quality and do not tend to leave scratches or damage the inside of the test tube.

I like the quality of the bristles of the test tube brush, soft yet effective in removing residue from the inside of the test tube.

The handle of the test tube brush is designed to be comfortable and not tiring to use.

Helped me avoid problems with residual substances.

Supplied in three sizes for test tubes of different diameters and lengths, very handy.