BT M12 Paint Grenade has been specially designed and Battle Tested to perform exceptionally in the field. The BT grenade is very unique as it is the only paint grenade to use the RPS paintball fill as its marking compound. This bright fill material combined with the grenades unique engineering design helps provide an effective range of 30 feet - leaving a mark that clearly identifies your targets !Pull Pin activation, Rubber loop for hooking to harnessp, and a nice compact size that fits well in your pocket. For $6.99, this grenade is a bit more expensive than others that are on the market. That's really the only reason we give it 4 out of 5 stars. It's works very well, and you are probably best served buying a few different types of paintball grenades and then deciding which you like the best. We also have to mention that the green color of this grenade makes it look pretty bad-ass!