GF ligature Maxima MX-05M Silver-Line Bass-Clarinet boehm mouthpiece, like a tailor-made suit, customised to fit various mouthpiece types Zinner 39, Schwenk & Seggelke, Willscher, Vandoren, Selmer, ESM, Pomarico Glas, optimal fitting and free vibration, within 6 oscillating reels - so the GF Maxima strap can be lengthened by 12.5 mm, in this way the correct strap length can be adjusted for each mouthpiece, dual play: vertical contact pressure of the reed through a stainless steel contact pressure leaf of the contact pressure through the GF System strap, imprinted reticule on the strap for an easy installation of the reed and the symmetrical fitting of the ligature; contents: mouthpiece capsule, watchmaker`s screw driver to change the oscillating reels, safety sticker to stick on the back of mouthpiece (4 units), foamed rubber glue dot to glue in place in the capsule (4 units)