The saxophone tightening neck screw compatible with all standard rubber and plastic standard saxophone mouthpiece. Especially suitable for musical instrument repair shops.<br> Made of high quality metal, durable and strong,easy to install.<br> It expands outwards to give a better finger grip.The neck screw tighten by finger and thumb.<br> Delicate workmanship with good texture, smooth surface to use.<br> High quality and fine design, this sax neck screw is a great choice .<br> Colour:Silver<br> Material:Metal<br> Size:2.8cm<br> Package Contents:<br> 4 * screw<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store