This is a metal SR Tech tenor sax mouthpiece, with the original ligature, cap and packaging. I bought it some years ago but have never used it on gigs; it is in excellent condition. It blows very freely and has a warm and projecting sound. There is not a range of tip openings; I believe that this is a 7 star opening (0.108 inches - see below), but I found it a bit too wide for me. You can try it or collect from Forest Hill, London SE23.

This is what Sax.co.uk says: 'something of a favourite here at SAX, An extremely well made piece with a perfect balance of full body and just enough edge to cut in a loud situation without compromising its core tone. 

Great responsiveness too. There's always something really satisfying about playing a piece with good hand finish to its tip and rails, the SR Tech range offers this without breaking the bank.

Pro Tip Opening: .108 inches
Pro 115 Tip Opening: .115 inches

The Tenor Pro and Pro 115 are identical except for tip opening. The Pro tip opening is .108 inches and the Pro 115 is .115 inches. With their moderate baffle and medium chamber these mouthpieces are very versatile and ideal for a wide range of styles.'