The Hammer attachment is used for vaporizing herbs in your water bowl, or extracts with your titanium nails. The Hammer Rod will have a 6 month warranty from date of purchase with original reciept. The Persei top has a limited lifetime warranty. The top features a 2 minute cut off timer and can reach temperatures of up to 750F in about 45 seconds. It is not recommended that you use this top for any oil cartridges as it can and will damage your cartridges.The Hammer works best with the pass through system.