Outer Dimensions: 4.53" W X 4.13" H, Inner Dimensions: 4.15 " W X 3.15 " H. Compatible with Avery 3x4 Inch Nametag Inserts.
Waterproof and Dustproof: Easily open and close with the excellent resealable zip closure. This waterproof and dustproof id card holder is great to keep your important paper badges or cards dry, clean and secure. Pre-Punched Dual-use hanging slot/holes design, the middle slot for lanyard, keychain or retractable carabiner reel clip, the both side holes for the cord/strap/string/thread. time. The hanging Slot/holes will not break, distorted many time.
Durable PVC (poly vinyl chloride) material, wear-resistant and corrosion-resistant properties. The Single layer thickness of this card holder is 0.4mm compares to 0.25mm or even thinner of generic items on the market. It's soft, smooth and durable, never leave creases or break even if folded repeatedly.