Welcome to our full selection of bongs with the unique button perc. Button Percs are small round disks that look similar to a button, the have slits on the front allowing for smoke to filter through, and are often seen in groups of 2-4 to provide even filtration throughout the bong. These percs offer exquisite diffusion as they are essentially several mini showerhead percs! Shop the best selection of button perc bongs now!