I tested them from 5 meters using the Umarex T4E TR 68 Gen2. 1. Glow. Well, I admit, it's not amazing. You have to shine light on them for quite a while, and they glow for a short time. But the effect is pretty nice. 2. Shooting. Here was a pleasant surprise, as they fly quite well. I left a sample in the photo (those are the hits marked in green). However, it should be noted they are the "softest." They leave the smallest marks on drywall and bounce really well. Basically, they resemble children's rubber balls. Not as bouncy, but still. All in all: I recommend them. At this price, I simply recommend.