


Aulos 521 Knick Bass Recorder
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Aulos 521 Knick Bass RecorderThe 521 Symphony Knick Bass plastic recorder by Aulos. Aulos are one of the major names in plastic recorders and the first manufacturer to successfully make a recorder from ABS synthetic resin. The 500 Symphony series is more faithful to historic designs and provides players with an inexpensive instrument of highly quality, with good intonation and response. This bass is a knick bass and has keys on the B and C holes as well as the bottom double F F#
Quick Dispatch:
Your Aulos 521 Knick Bass Recorder orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Longest lasting toy in our toy box
Size: 6 in, Color: Blue
My German shepherd/Austrian shepherd mix destroys toys very quickly. This is his longest lasting toy that he actually uses and still has no visible signs of destruction.
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Reviewed in the United States on June 11, 2026
★★★★★ 5
actually durable
Size: 6 in, Color: Blue
my puppy shreds every "indestructible" toy I give to her instantly. she's had one for months and it is only missing a corner of it, so I bought a spare. it also smells like food. she loves it.
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Reviewed in the United States on July 4, 2025
★★★★★ 5
Will purchase again
Size: 6 in, Color: Blue
Dogs love this. Chew-on-able, and durable.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Good buy
Size: 6 in, Color: Blue
A winner with our GSD. He’s not a super aggressive chewer but it has still held up and is a favorite.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Terrific toy for heavy chewers
Size: 6 in, Color: Blue
My dog loves this! Chews and plays with it constantly. These will last a long time, however, eventually they begin to break down. THEN GET ANOTHER, lasted a couple months with constant chewing.
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Reviewed in the United States on August 29, 2025