All our Compaks have been designed in close collaboration with National and Local Health Authorities, Needle Exchange Schemes, Pharmacists and Field Workers. The end results are a unique range of products that offer safety for all and discretion for users as well as powerful features and benefits to assist in return rates and offer genuine budget savings. We recommend no more than 16 1ml syringes or 10 2ml syringes as the safest fill levels for our bins. Why jeopardise safety? We only use the suppliers specified by you for Needle Exchange Packs.