Hpmjz 96 Pcs Stainless Steel Whistle with Lanyard, Loud Clear Sound Referee Whistle Sports Whistle Bulk for Coaches Referees Survival Kits Emergency Training Outdoor Safety Main function: The stainless steel whistle is perfect for coaches, referees, teachers, and anyone who needs a reliable sounding tool. Color: Black and yellow lanyard Silver whistle Product size: Rope Length: 14.56 inches/37 cm Product Dimensions: 1.77 × 0.71 × 0.79 inches/4.5 × 1.8 × 2 cm Package contents: 96 pcs × Whistle (48 pcs black rope + 48 pcs yellow rope)