Simply pick a random number from 1 to maximum 50 and clearly show for participants, such as students in classroom.
Also can use for lottery assistance, e.g. mark six in Hong Kong.
Tags : classroom, student, 隨機, 抽獎, mark 6, 六合彩, ランダム, 宝くじ, 복권
Tags: random number picker , number picker , numberpicker , number picker widget , number up down picker , numberpicker widget library , free random number picker , html random 6 number , number picker random for students