NEC Reference Cards help electrical contractors and installers increase accuracy, safety, and efficiency by providing on-the-job access to 13 of the most frequently referenced tables in the NEC, 2020 edition. These double-sided, laminated cards fit comfortably in your pocket or clip on to your belt or toolbox using the included one-inch metal ring. NEC Reference Cards are waterproof and extremely durable. The lightweight design and compact 3.5ʺ x 5.5ʺ size make it a go-anywhere resource for electrical professionals. Bring the complete set of cards with you or just the ones you need for the particular task at hand. The all-new set features updated and expanded table titles, column headings, and footnote content based on the 2020 edition of the NEC.