Zacuto Z-DRV Z-Drive Follow Focus for Shoulder Mounted Rigs - Bundle - with Z-TRN Tornado Handgrip Zacuto Z-Drive - Zacuto Lifetime Limited Warranty - Bundle with: - Tornado Grip for Z-Drive Rod Diameter: 15mm / 0.59" Gear Drive: 1.75", 0.8 pitch Dimensions: Z-Drive: 5.0 x 2.5 x 2.0" (12.7 x 6.4 x 5.1cm) Tornado Grip for Z-Drive: 8.0 x 2.5 x 2.5" (20.3 x 6.4 x 6.4cm) Weight: Z-Drive: 10.4 oz (294.8g) Tornado Grip for Z-Drive: 12.8 oz (362.9g)