OOZE® ECHO Hybrid 4-in-1 Silicone Water Pipe - RastaOOZE's ECHO silicone pipe can be used with material, concentrates, and 510 thread oil cartridges. To use as a water pipe, insert the OOZE Armor Bowl and fill it with shisha and light as usual. To vape instead, with the Armor Bowl still inserted, the glass bowl can be popped out to reveal the vape pen adapter. Any 510 thread oil cartridge can be attached for a super smooth vape experience with the added benefit of water filtration. Any concentrate