ELECTRO-HARMONIX Small Stone (Old Enclosure) Electro-Harmonix Small Stone Phaser These old enclosure models are rare and difficult to obtain, even as used items. While inheriting the 80s design, it has been improved with an LED for easier use. USED. The enclosure is prone to scratches, but there is no rust and it is generally in good condition as shown in the images. Fully functional. This listing is for the unit only.