Rico Graftonite Bb Clarinet Mouthpiece, C7 Tin Whistles What exactly does that mean

What exactly does that mean

the B7 uses an Alnico 5 bar magnet

Fingerboard: Amaranth

the sweet forgiveness of our British-style EQs and a Klark Teknik 24-Bit Multi-FX Processor with 100 presets including studio-class reverbs

Rico Graftonite Bb Clarinet Mouthpiece, C7 Tin Whistles What exactly does that meanThe Graftonite line of mouthpieces, designed by Arnold Brilhart, incorporates revolutionary materials to achieve ease of tone production. Each Graftonite mouthpiece is made from durable polycarbonate material. Graftonite Mouthpieces are available in three chamber sizes, three tip openings, and are priced affordably, making them ideal for students. Tip opening: . 055" Facing length: 20mm Chamber: Small