Extremely loud and compact emergency whistle
by Peter · from Printables
Free to print
♥ 559 likes
↓ 6,607 downloads
Sports & Outdoor
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PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
Rock-Solid and lightweight emergency whistle. Two chamber design. Painful loud.
