Detailed Product Description Made of a thick yet softer, more flexible vinyl, our S-Series Holders handle even thicker cards or multiple cards without splitting. The slot is through the front and back of the holder, so using a strap clip â?œlocks inâ? the card. The front and back are each .020â? thick (.040â? total), or choose the Heavy-Duty version with a heavier .030â? thick back. Both versions are available with optional anti-print transfer material. |