These biodegradable cards offer the same benefits as a normal PVC card with one added bonus. These cards are the green choice for your business. They work in both Direct to Card (DTC) and Retransfer (Reverse Transfer) ID badge printers. The cards are a standard CR80 size which is the same as a credit card. The cards can be hole punched to work with a lanyard or strap clip or they can be used with badge holders to keep them safe. Each box contains 500 Eco-friendly cards!