Sometime ago, I report the rubber parts on my Tesco binoculars becomes sticky. Since then, I found no solution to reverse or remove the sticky rubber. So as last ditch effort prior to throwning it away I wrap the bino in Glad Wrap (thin plastic sheets for wrapping food stuff) and top it off with some sticky tape to hold it all in place. Glad (pun' intended) to say it works just fine. My fingers are nolonger sticky from using the bino.