Features: Experience safety and clarities with our whistle guard, designed to deliver a crisps sound while protecting your teeth during sports activity.<br> Make from food grade pvc, this whistle is both colourless and odorless, ensuring a comfortable and healthy use for referees and athletes alike.<br> Great for coaches, sports referees, and athletes, our whistle guard offer a comfortable fit that caters to professional across various sport disciplines.<br> Whether it's for a soccer, baseball, or school sports class, this whistle guard is your sport accessory for any competitive or training environment.<br> Embraces the innovative designs that protect your sports gear, makes you standing out in game or practice session.<br> Specifications: Materials: Food Grade PVC<br> Color: As The Picture Shows<br> Package Weight: approx.35g<br> Styles Optional:<br> 2 Styles are Available as Shown in the Picture.<br> Size: approx.1.5x2x1cm/0.59x0.78x0.39in<br> Package Includes: 20Pcs Referee Whistle Cover<br> note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid.<br> Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!