This plug is incredibly playfull. This plug, made of acrylics, has a see-through dome plate on both the front and the back. This creates the effect of a magnifying glass making the plug live up to its full potential. The inside of this plug is filled with loads of small brightly coloured crystals. The plug is approximately filled for half which allows these crystal to move at will creating a truly unique effect. Of course the following applies, the bigger the size, the stronger the effect.