Giới thiệu Còi Thổi Thể Thao Bằng Nhựa Có Dây Buộc 40
Product name: plastic whistle Material: ABS Weight: 50G/pcs Neck Rope : Length: 450mm/17.72" Item size: 6*2.3cm Feature 1.)The whistle is loud and clear, and can completely drown out the noise of the crowd and the natural environment 2.)Portable size, light weight, easy to carry with. long dissemination distance. 3.)100% Brand New, 120 Decibel sound, Includes 9" lanyard Use Referee, Coaches, Traveler, Adventurer, Tour Guides, Cheerleaders, Lifeguards, Teachers, Traffic Guides, Dog Trainer,