Apple Pencil

Apple Pencil is a digital stylus pen that works as an input device for certain iPad Pro models and iPad (6th generation). It was first announced on 2015 alongside the iPad Pro, and released in conjunction with it on 2015. It is superseded by Apple Pencil (2nd generation).

Support
Apple Pencil is supported by the following models:
 * iPad Pro (12.9-inch)
 * iPad Pro (9.7-inch)
 * iPad Pro (12.9-inch) (2nd generation)
 * iPad Pro (10.5-inch)
 * iPad (6th generation)
 * iPad Air (3rd generation)
 * iPad mini (5th generation)

Specifications

 * Dimensions
 * Length: 6.92 inches (175.7 mm) measured from tip to cap
 * Diameter: 0.35 inch (8.9 mm)
 * Weight: 0.73 ounce (20.7 grams)