Grenadilla (African blackwood) is the standard wood for professional clarinets, valued for a warmer, richer, more complex tone that most experienced players and teachers prefer, but it is more expensive, heavier, and vulnerable to the cracking risk that comes with rapid temperature and humidity swings. Plastic (typically ABS resin) clarinets are lighter, significantly more resistant to cracking and climate damage, and much less expensive, making them the standard, sensible choice for school-age beginners who may not yet handle an instrument carefully or consistently. Tonally, quality plastic clarinets have improved considerably and are entirely adequate through intermediate levels; the wood upgrade becomes worthwhile mainly once a player can reliably perceive and exploit the tonal difference.