Customisable Powerpoint timers/countdown clocks. Each slide contains a different timer. Included are the following: six digital timers that count down each second: 00:30 | 01:00 | 05:00 | 10:00 | 15:00 | 20:00 three one-minute circle timers (like film leaders): 10:00 | 15:00 |20:00 Each timer is set to start when the slide changes. If you want to change the colours, formats and fonts of the timers, click and drag to select the whole timer and then change the fill, outline, font, text colour, etc. (instructions included in the Powerpoint). The same applies to using them in your own presentations - just click and drag to select the whole timer, copy and paste in your own slide.