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We are living in a world moved by technology; a world that is changing every single minute; and a world full of innovation that is kicking in and reshaping every aspect of our life. ROLLOVA is a product of that very nature — a digital ruler that transforms how you measure things. Most importantly, a ruler that measures a variety of surfaces easier than ever before. ROLLOVA is a pocket-friendly ruler that measures curves, lines, and various surfaces that are compatible with major units of length. With one easy roll at a time, ROLLOVA provides you with an accurate measurement on its OLED screen.

Successfully funded on Kickstarter

  • Designer's edition. Comes in 18K gold plating
  • Compact. Fits in your pocket or keychain with the included case
  • Digital. Saves measurements & replaces traditional rulers
  • Easy to use. Press, scroll & rolls over objects/areas to measure
  • High-contrast OLED screen. Provides brighter display & outstanding energy efficiency
  • All surfaces. Measures from flat surfaces to curved objects
  • Versatile. Measures in both imperial (inches) & metric (centimeters) units
  • Full stainless steel body. Combines the best of ruggedness, precision & style


  • Color: black, gold
  • Materials: 7075 aluminum alloy, 304 stainless steel, nylon plastic with fiberglass, silicon rubber, 18k gold
  • Dimensions: 2.04" x 2.04"x 0.5"
  • Display: 1.2" OLED display (bright white)
  • Accuracy: maximum tolerance ±0.4%
  • Compatible units: inch (decimal), inch (fraction), centimeter (decimal)
  • Measuring range: 10 meters in metric mode, 83ft in inches mode
  • Standby time: 18,000 hours (2 years) with 2x CR1632 batteries
  • Features:
    • Data saving: up to 99 measurements
    • Adjust function
    • Offset function
  • Hozo Design Warranty Info


  • Rollova 2.0 Digital Ruler (Designer Edition)
  • Black Genuine Leather Case
  • 2x CR1632 Batteries
  • User Manual (EN, CN, JP)


  • Ships to US
  • Expected Delivery: Dec 8 - Dec 15


  • Returns accepted within 30 days of shipment for orders within the Contiguous US.