Come and Check Our Branding Solutions.This is an aluminum alloy whistle, good appearance with promotional function. Aluminum alloy material, ultimate Life-saving whistle loud whistles. Using in whistle for emergency and in sports referee ,120 decibels that pitch crisp sound can be heard far distance water-resistance camping whistle. Great for attaching onto belt loops, purse straps or golf bags. An ideal promotional product for students, coaches or sports fans Standard key ring included. Pls check inventory and detailed info before placing your orders.