Cartilage-hair hypoplasia (CHH) is one of the well-known immuno-osseous dysplasias (IOD). which are a combination of skeletal dysplasia and immunodeficiency. It is characterized by disproportionate short stature. fine sparse hair. https://www.roneverhart.com/Tc-Electronics-M350-Multi-Effects-and-Reverb-Processor-M350-p36058/