5mW 532nm Astronomy Powerful Green Laser Pointer – Black
I guess it is cheap and excellent laser pointer for your presentation. Actually, may it is just in my opinion because I like green pointer. Black Dimple Finish High Power Green Laser We ensure that each calibrated with a high power laser pointers green hand and tested to wait at least 4.99mw output and thus offers the expected power of a real constant wave green beautiful (532nm ) laser pointer will perfect for your presentation. Well you can try this with your presentation experience, it will be a great day for you. Good Luck!