This cutting edge Metal Tip Attachment is the perfect solution for those who desire a fine, pen-like precision with their adhesive applications.Tip opening is 0.6 mmThis attaches to any Art Glitter adhesive spouts which come on our 2 oz and 4 oz bottles.To apply it to the bottle, apply pressure downward and turn clockwise with the metal tip pointing up from the tip of the bottle spout, lift the bottle by the Metal Tip Attachment to ensure its securely fastened to the spout.For step by step instructions on how to install your metal tip, check o