ID 74610770 © Juliaph | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
accuracy background blackboard chalk chrome chronometer clock cognizance concept countdown counter counting design education face gears hand hour icon illustration instrument knowledge learning line lore machine management measure measurement mechanism metallic meter money precision realistic retro scholarship school science start stop stopwatch study symbol teaching time timer vector watch