You decide the size of the opening, for very fine opening insert a pin tip, for a larger opening cut the tip.
Soft squeeze plastic bottle permits easy control, perfect for applications of adhesives.
Price for 6 - 1 oz simple to fill plastic bottle.
HINT: While quilling, place a slightly damp sponge or paper towel in a small container and keep the bottle tipped upside down inside. This will prevent the glue at the tip from drying out.