Step 1: With both hands grip shade at top of body elastic & bottom of necks elastic band and spread apart creating opening to slip over head of instrument-slip shade over head.

Step 2: Grip and spread elastic on shades head opening and slip it over head of instrument.

Step 3: Hold instrument at base back side of neck through shades neck opening with one hand.

 Step 4:  slide other hand under and inside back side of the body of shade use fingers to grip elastic, slip and slide elastic sides over body of instrument. stretch and pull shade around for stung fit.