Introduction to the ceremony: Leaders and guests can each use a laser pen, and through the collection of laser light points, they can gradually become a line, the line becomes a surface, and then guide the relevant theme.

Applicable number of people: 2-10

Installation time: 1 day

Number of installers: 2

Explanation: The laser pen is a precision optical device (different from laser teaching aids on the general market) that cannot be dropped, allowed to enter water, or directed into the eyes. It should be managed by someone during use.