Sienna Plein Air Pastel Insert Medium (CT-PP-0810)

Returned, it’s made of very thin brittle plastic that won’t stand up to multiple uses IMO. I ordered two different sizes and one arrived already cracked. This is thinner plastic than the watercolor tray, which also seemed delicate. Its similar to plastic used to display an item in a clear top package, like a dollar store kids bead set or a holiday bath gift set.