You are bidding on 10 sets of side shields, 5 sets of B52+ pieces and 5 sets of B26+ pieces.  10 sets of comfort cushions are also included.   These are made by Safety Optical Service and best fit small, medium  and large frames. The B52+ are designed to fit lenses that are 42-52mm in height.  The B26+ are designed to fit lenses that are 30-43mm in height.  They have a small rubber band that will allow you to attach these to your eyeglass frames. The cushions have self adhesive on one side and are designed to go between the side shield and your head.