PRT Water pron & Foolproof or Everyday Use But please don't soak it in water or leave it outside in the rain. Eye cups Eyepiece {twist it up when not wearing glasses) Dipterous Adjustment Wheel Focus . Adjustment Wheel Rig for fasten the neck strap Right Barrel Left Barrel Tripod Interface {Tripod Not Included) Step 1 Step 2 Cover the right object: lens, Cover the left object lens, turn the focus adjustment turn the dippier adjustment wheel writ therewith is.clear wheel unit the view fu clear.