Hakkotsu Thunder B grenades have been the industry leading standard in non-pyrotechnic simulation grenade / distraction devices for years. Thunder B grenades use a safety pin / spoon design very similar to a real grenade, with no shrapnel and no pyrotechnics, providing an effective low-impact burst. This sound-type grenade is safe for many uses, in all environments and weather. Each shell is one-time-use; simply replace the CO2 cartridge in the grenade core, thread on another shell and you're ready to rock!<br><br><b>Package Includes:</b><br><li>1x Thunder B Core Unit</li><li>12x Distraction Grenade Thunder B Shells</li><br><b>Disclaimer:</b><br>Please use discretion when using this product. User and all surrounding personnel must have proper gloves / mask and eye protection prior to using Sound Effect Grenade Shells. This product is intended to be a sound maker and is only designed for serious training and simulations. Placing water, BB's and any other objects inside this product c...