write + easy to …
kaki yasui
easy to …; prone to
meaning: be easy to write
このペン、太くて書きやすいね。
kono pen, futokute kaki yasui ne.
This pen is thick, so it is easy to write with, isn't it. casual
このグラスは薄くて割れやすい。
kono gurasu wa usukute wareyasui.
This glass is thin and breaks easily. neutral