Plastic Trombone Review
Plastic trombones are a relatively recent development, and parents and students ask me about them constantly. I own both a plastic and a brass trombone, so here’s my honest take on the trade-offs.
What plastic gets right
It’s light — both to carry and to hold up while playing — and easy for a young player to hold correctly from the start. It won’t dent if it’s bumped or dropped, and the slide stays in new condition no matter how it’s handled. It’s inexpensive new (under $300), and it comes in a range of colors kids actually like.
Where it falls short
The sound isn’t very bright, the slide has noticeably more friction than a well-maintained brass slide, and the instrument can break if it’s dropped hard or mistreated. The slide section and bell section can also come apart unexpectedly if it isn’t held correctly — the two pieces aren’t bolted together securely.
Who should actually buy one
A plastic trombone makes a lot of sense as a first instrument for very young players. It costs roughly what a year of renting a brass instrument would, so for a relatively small outlay you end up owning it outright — useful if there are younger siblings who might want to learn later. Young kids are still learning to handle an instrument respectfully, so the durability genuinely matters, and the light weight solves a real problem: a young player struggling to hold up a brass trombone for a full session will often end up resting the slide awkwardly on their leg or finding other bad habits just to cope with the weight.
You can partly fix the dull sound by swapping in a metal mouthpiece instead of the plastic one it ships with. The extra slide friction will frustrate a more experienced player, but a beginner won’t know the difference — and they’ll genuinely appreciate a frictionless metal slide when they eventually upgrade.
For any other kind of player, brass is the better choice. If a student can handle the weight, take proper care of the slide, and cost isn’t the deciding factor, a brass trombone with a well-maintained slide will simply produce a better sound and move more freely. As playing develops, tone quality becomes a real priority, and plastic won’t get you there.
One more warning
Be wary of new brass trombones priced about the same as a plastic one — they exist, and they shouldn’t. Parents who grab one of these thinking they’ve found a bargain usually find out the hard way that they got what they paid for: awkward cross-bar spacing that’s hard for a young child to hold, and slides that can be worse than the plastic alternative. A second-hand, name-brand brass trombone is almost always the better buy at that price point.
Bottom line: it’s horses for courses, and you get what you pay for.