Silicone caps with a round bottom 6-8 mm 100 pcs

Silicone caps with a round bottom 6-8 mm 100 pcs

Silicone caps with a round bottom.
You do not risk getting a microbend at the tip of the needle when the needle hits the wall of the cap
Moreover, even if you stick a needle into it, the pigment does not come out of the cap anywhere.