TOPWEL Ziplock Function 10pcs Waterproof Type Pvc Id Card Holder, Clear, Vertical Style Badge Id Card Holders Holder Size : 13.5 x 8.3cm/ 5.3" x 3.27" (L*W);Fit Card Size : 11 x 7.5cm/ 4.33" x 2.95" (L*W) ou can use a chain or lanyard easy enough Can be inserted your card stock name tags in them. They sealed up nicely and can be used again very convenient!