Welcome to SmokShop's mechanical mods page. Here you will find a wide selection of mechanical mods from telescopic, static tube, magnetic switch and pipe mechanical mods. The telescopic mods can extend or contract to allow all different sized batteries to be used in them, the static tubes can only take one size of battery unless extension tubes are available. Pipe mods typically use an 18350 battery but the Smok E-Pipe can have extension tubes attached to allow bigger sized batteries to be used. The biggest thing to note about a Mechanical Mod is that it has no chip-set or regulation inside allowing the battery to push its maximum power output, just remember that as a battery drains the maximum output will also lower over time/use.