When you purchase Saxenda from Simple Online Pharmacy, you'll receive the weight loss injection pen. You can purchase needle heads to use with these pens here: https://www.simpleonlinepharmacy.co.uk/medications/saxenda-needles/ You can also purchase a sharps bin to dispose of used needle heads here: https://www.simpleonlinepharmacy.co.uk/medications/1-litre-sharps-bin/