Green KADAMS Pomodoro cube timer showing rotating 5, 10, 25 and 50 minute countdown faces
Focus & Study

KADAMS Pomodoro Cube Timer Productivity Visual Timer - 5/10/25/50 Min Rotating Countdown (1, Green)

A fixed-interval Pomodoro cube: 5, 10, 25 and 50 minutes, no custom durations, no clock, no menus.

Available at:
Amazon
Market:
United States (Amazon.com)
Availability:
Availability and price change frequently on Amazon. Check the listing for current stock and shipping to your country.

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What it is

This is the deliberately simple Pomodoro cube. You start it by turning it over, and that is the entire interaction: no unlocking a phone, no screen, no chance of being pulled into something else on the way to starting a focus block. The intervals are fixed at 5, 10, 25 and 50 minutes, which maps directly onto the classic Pomodoro pattern of a 25 minute working period and a 5 minute break, with 50 minutes for a double block. There is no custom duration and no clock function, and that constraint is the point: with nothing to configure, there is nothing to fiddle with instead of working. Choose this over the TK3 if you already know your working rhythm and want the fastest, least distracting object on the desk. Choose the TK3 instead if your sessions are not 25 minutes, if you need a silent vibrate-only alert for a shared room, or if you also want the cube to serve as a desk clock and stopwatch.

Why HOS selected it

Starting a focus block should not require picking up the device you are trying to avoid. HOS lists the fixed-preset version because the fewer decisions a timer offers, the more reliably it gets used.

Key features

  • Flip-to-start operation with no menus or settings
  • Fixed 5, 10, 25 and 50 minute intervals matching the standard Pomodoro pattern
  • Compact desk footprint
  • Simpler than the TK3 by design: fewer modes, fewer buttons

Who it is for

People running a standard 25 minute Pomodoro rhythm who want the simplest possible object and no settings to manage.

What it will not do

Intervals are fixed at 5, 10, 25 and 50 minutes with no custom duration, so an unusual working rhythm will not fit. It has no clock mode, so it does not replace the phone that sits on the desk to tell the time, and the audible alert may be unwelcome in a shared library or office.

Buying considerations

  • Only choose this if 5, 10, 25 or 50 minutes covers how you actually work
  • No custom durations and no clock mode: the TK3 cube adds both
  • Consider whether an audible alert suits a shared room
  • Note the power source and battery type before ordering

Editorial note

HOS selected this product based on its stated features, practical relevance, availability, and fit with this category. This is not a hands-on review unless explicitly labeled as one.

Product details verified 2026-08-04.

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Related tools

Black TK3 Pomodoro timer cube with digital display showing preset countdown minutes on a desk
Focus & Study

TK3 Pomodoro Timer Cube, Desk Productivity Timer with 5/10/30/60 Min Presets, Custom Countdown, Stopwatch, Clock, 3 Alarm, Silent, Vibrate & Sound Alert, for Task, ADHD, Study, Kitchen, Black

A flip cube with 5, 10, 30 and 60 minute presets plus custom countdowns, silent vibrate, three alarms, a stopwatch and a clock.

Best for: Libraries, classrooms and shared offices, and anyone whose focus blocks are not a standard 25 minutes.

Available at Amazon

Affiliate link. HOS may earn a commission at no extra cost to you.