Vandy Vape’s Squonk Refill Bottle is made of high quality silicone with a stainless steel cap which provides stability when attaching Vandy Vape’s squonk refill bottle onto a squonk mod. The squonk refill bottle features a threaded stainless steel 510 connection which makes it compatible with most squonk mods and also has a stainless steel cap to reseal the bottle when not in use. In addition, the 50ml squonk refill bottle can be completely disassembled for cleaning.