2nd Avenue EXCLUSIVE Vespa and Stella auto lube sight glass and block outs. Designed in house here at 2nd avenue scooters, guaranteed for life never to break! Tired of cleaning up oil every time you break a cheap plastic sight glass? Fear no more, our replacements are ready to install and we promise this will be the last sight glass you ever install in your Vespa or Stella! The complete comes with Teflon taped threads, an O-ring, and is ready to install, the solid block out is great if you decide to delete the auto lube and need an attractive way to replace your ugly plastic sight, and the short blank is great for those auto lube conversions in earlier Vespa’s so you don’t need to drill a hole in the body!