This Deflecto Grab-A-Card Outdoor Business Card Holder allows potential customers to easily and conveniently take contact information anywhere that it is needed. You can place the card on any smooth surface for use. This product is ideal for use on front doors, vehicle windows, outdoor signs and more.Details:Clear4" x 2.88"Holds up to 40 business cardsThe spring loaded top makes card holder weather resistantUV protected against fading, won't harm painted surfacesBuilt-in slot keeps front card always on displayDetachable mounting plate and adhesive tape pads includedAcrylic