TOOGOO(R) 5 Pcs Sports Referee Plastic Assorted Color Whistle w String Product Name : Referee Type Whistles Color : Pink, Green, Yellow, Blue, Red Material : Plastic & Nylon Strap Girth : 60cm/ 23.6" Each Size : 3.7 x 1.5 x 2cm/ 1.4" x 0.6" x 0.8" (L*W*H)