StoreSMART - Magnetic Business Card Holder - 2" x 3 1/4" - Vinyl Plastic - Open Long-White Back - 50 Pack - PE222MLW-50 Front is crafted of 7 1/2-gauge crystal clear vinyl. Back is crafted of 12-14-gauge solid white vinyl. One 1/2" x 3" Magnet on Back. Overall size: 2 716" x 3 1316". Inside capacity: 2 116" x 3 716" (will hold 5 business cards). Opens on the long side with a 1/4" lip.