Tubes with rose caps contain 0.25ml of 6% w/ v solution and deliver 15 mg of selamectin Tubes with blue caps contain 0.75 ml of 6% w/ v solution and deliver 45 mg of selamectin Tubes with violet caps contain 0.25 ml of 12% w/ v solution and deliver 30 mg of selamectin Tubes with brown caps contain 0.5 ml of 12% w/ v solution and deliver 60 mg of selamectin Tubes with red caps contain 1.0 ml of 12% w/ v solution and deliver 120 mg of selamectin Tubes with green caps contain 2.0 ml of 12% w/ v solution and deliver 240 mg of selamectin