YANAGISAWA Yanagisawa End Plug for Soprano Saxophone, Made by Mapuka Solid Bond but they have the disadvantage

but they have the disadvantage of slipping out of place while playing

they can be used with a variety of equipment

We chose phosphor bronze over the traditional brass plug material because we discovered that phosphor bronze offers a different sound character than brass

taking into consideration the sound of the D-28 Sandard

YANAGISAWA Yanagisawa End Plug for Soprano Saxophone, Made by Mapuka Solid Bond but they have the disadvantageYANAGISAWA End Plug MAPKA for Soprano Saxophone This is an end plug for Yanagisawa saxophones that protects the octave keys of the saxophone. It is made from a new environmentally friendly material called "Mapuka(R) (eco bioplastic paper composite material)," which is a blend of 51% paper powder and 49% polypropylene. Comes with the YANAGISAWA logo, giving it a luxurious feel. *The fit may vary depending on the individual unit. For soprano