Made of polyurethane, which is 1/3 the weight and twice the strength of the braided airhose.
The attached Iwata airbrush fitting and 1/4" compressor fitting use O-rings which form leak-proof seals when attached.
PLEASE NOTE: Compressor hose fitting is 1/4" and works perfectly with any Iwata Compressor. If using with any Proaiir Compressor, it requires an adaptor as the fitting on that Compressor is 1/8".