THIS IS AN OEM GENUINE NEW OLD STOCK ECHO 13034106160 HOOK FOR THE AIR FILTER COVER ON A MODEL PB-4500 BACKPACK BLOWER.  FEEL FREE TO MESSAGE ME WITH ANY QUESTIONS YOU MAY HAVE.  PLEASE BE SURE THIS PART FITS YOUR MACHINE AS I WILL NOT ACCEPT RETURNS DUE TO A BUYER ORDERING THE WRONG PARTS.  IF YOU ARE UNSURE YOU CAN MESSAGE ME WITH YOUR MODEL AND SERIAL NUMBERS AND I WILL LOOK IT UP FOR YOU IF I HAVE ACCESS TO THE PARTS DIAGRAMS TO GUARANTEE YOU RECEIVE THE CORRECT PARTS FOR YOUR MACHINE.