Product Specification: Wireless pairing and charging attaches magnetically Double-tap to change tools Pixel-perfect precision Tilt and pressure sensitivity Imperceptible lag Bluetooth Length: 166 mm (6.53 inches) Diameter: 8.9 mm (0.35 inches) Weight: 20.7 grams (0.73 ounces) Magnetically attaches and pairs Compatible with: iPad mini (6th generation) iPad Pro 12.9-inch (3rd, 4th and 5th generation) iPad Pro 11-inch (1st, 2nd and 3rd generation) iPad Air (4th generation)