as the title says it reduces the internal chimney, This is to be used with the mesh deck and the single coil deck, I used it with the mesh tank, im not a 100% sure what this it meant to do but for me it made the draw a little tight it dont improve the flavour. I am not a mesh deck fan I prefer the postless deck but im not expert of mesh and it was my first time, The Product is well made and simple enough to fit and you get 2 in the pack

you dont need to buy this if you brought the Advanced kit unless you need spares but if you brought the basic tank buy this if you have brought the mesh deck or single coil deck

I did try this this with the postless deck but made no improvement for me. I might revisit mesh at a later date but at the moment its only 4 star from me just because it made no improvement to my vape

Service from dripdrop was amazing