Heroquest

10 x Falling rock trap / Blocked squares

2 x Double
8 x single

Double measures 44 x 22 x 15mm   ( 15mm at the highest point )
Single measures 22 x 22 x 15mm  ( 15mm at the highest point )

These come in grey and are unpainted.
Each tile has a small thin outer area that can be left or trimmed away with a craft knife.