The Blank White PET Core Plastic Cards with Magnetic Stripe is a high-quality composite plastic card made with 60% polyester and 40% PET to withstand high-heat temperatures during lamination and re-transfer printing. This card also comes with a high-coercivity magnetic stripe to enable data encoding.Product weight: 0.51 kg- Sold in packs of 100- High-coercivity magnetic stripe (2750 Oersted)- Composition: 60% Polyester, 40% PET- Standard CR80 card size (85.60 x 53.98mm)- 760 micron/30 mils