Leica Trinivoid Eyepiece

Replacement eyepiece protectors for Leica Trinivoid Binoculars 10 x 42. I got fed up with snow and cookie crumbs filling the eyepieces. Concept by R.Waters. Designed by student: K.Bowlby - Technological Design (TDJ2O) at Bell High School Ottawa, Canada. The loop slides over the shoulder harness strap buckles and has a 3mm wall thickness for durability. The eyepiece caps have stood up well to our recent low temperatures of -27C and they are easy to use. They rattle a little when not over the ey