Innovative air bag technology is designed to inflate and deflate while surrounding your shaft with stimulating squeeze and release pleasure. Multiple air bags with multi functions, combined with powerful air-tight suction to milk every inch of your cock, will give you the best masturbation experience of your life! Air-tight suction ensures that tip in or balls deep, the PDX Elite Cock Compressor Vibrating Stroker will give you incredible multi-action sucking and milking masturbation.