Our Catnip bubbles are made in-house with non-toxic ingredients and Catnip tea made from fresh Catnip in our garden. These multicolored bubbles are a great way to play with your cat and allows your kitty to "hunt" them without the overly greasy residue or risk to your kitty's health! Each container comes with 6ml of bubbles and they come in a variety of colors: pink, yellow, orange, red, gold, purple, blue, dark green, and light green.