Check the listing for details. Treeworks TRE57BP Triangle Set with Beaters and Bag. Condition: New. Listed at 69.99 USD. Handcrafted Triangles with All the Accessories Treeworks’ professional-grade products adorn the setups of many of today’s leading indoor and outdoor ensembles. And for good reason — the company’s percussion instruments are top-notch! The TRE57BP triangle set that comes with beaters and a bag is no exception. This full-featured kit combines three of Treeworks’ hand-bent, ear-tested triangles into one set, with all of the accessories needed for stellar performances. Inside are 4-, 5-, and 6-inch triangles, constructed from custom heat-tempered carbon steel alloy and finished with satin chrome to maximize response.Handcrafted Triangles with All the Accessories Treeworks’ professional-grade products adorn the setups of many of today’s leading indoor and outdoor ensembles. And for good reason — the company’s percussion instruments are top-notch! The TRE57BP triangle set that comes with beaters and a bag is no exception. This full-featured kit combines three of Treeworks’ hand-bent, ear-tested triangles into one set, with all of the accessories needed for stellar performances. Inside are 4-, 5-, and 6-inch triangles, constructed from custom heat-tempered carbon steel alloy and finished with satin chrome to maximize response.