If you're interested in seeing what happens inside those Mason Bee Tunnels then this View Block Add-On is the perfect addition to your Mason Bee House! Made to fit all of our Redwood Mason Bee Houses, this view block can be used to replace a top tunnel block, giving you easy viewing access through a plexiglass top, to a behind-the-scenes peek at how mason bees create their tunnels and how their cocoons develop! Fun for all ages!
 
Handmade by Pacific Pollinators in the USA!
Tunnels approx. 8mm
* House sold seperately *