The 'Peak' bong made of - partly black - borosilicate glass from 'Black Leaf' is equally suitable for the enjoyment of herbs and concentrates. Therefore, in addition to the lift-off bowl for herbs, it is equipped with an oil banger.The bowl holder has an extended tip which acts as an ash catcher. So that the smoke is pleasant to inhale, the handy pipe has a drum percolator. This provides plenty of water and air turbulence that cools and filters the smoke.