GSC International LSP-RED Laser Pointer Red for Physical Science Understanding and measuring wavelengths is an important subject in any physics class. This is a Class III, Laser Pointer. The red laser light has a longer wavelength of about 650 nanometers. The Laser Pointer is a high-quality pointer at an affordable price. The battery is i
5.0
1 rating
5
4
3
2
1
The pen was great quality, arrived on time. We were very pleased with your product and your service. Will certainly use this company again. Had been looking for some time for a pen of this quality! Thank you