This Mix & Match' 'Blaze Glass' bong extension has a 8-arm
Tree percolator has a black dome with 12mm risers. All percolator arms
are interlinked at the bottom and are thus, practically unbreakable. It
is manufactured from 5mm think heat-proof borosilicate (Pyrex) glass and
has Sure ground SG 45mm friction fittings top & bottom.