Wholesale Grav Labs 4" 14mm Male to Male Drop Down - 5pk GRAV Drop Downs protect water pipes from damage due to extreme torch heat and limit the possibility of a user burning herself. Drop downs increase the distance between the accessory being torched and the body of the pipe and are easily replaced if broken. This drop down is 4" long and has two male 14mm joints Features Length Height : 4" Joint : 14mm Male & 14mm Male Designed By : Dave Daily