Features a stainless steel dispensing tip for precise application. The unique cap/wire system is non-clogging and air-tight. Use with acrylics, ink, watercolors, oil paints, silk dyes, stains, henna, water-based glues, glazes and more. Applicator size, 18/410 (the number before the slash refers to the size of the cap). Size 18 fits most 1 ounce bottles.