Size:Total length 8mm/0.31inch,suit for shower hole diameter 4mm/0.16inch; The nozzle is made of food grade silicone,which is resistant to high temperatures,more durable and safer to use; The nozzle is made of food grade silicone,which is resistant to high temperatures,more durable and safer to use; package include :50 pcs Shower Head Nozzles; Size:Total length 8mm/0.31inch,suit for shower hole diameter 4mm/0.16inch; Replacement part of shower head,easy to intall; Universal for most shower heads,easy to replace,greatly saving your costs..