Graven Games has another review up on their website. This one is for the damageable wall terrain pieces available from 4Ground.
From the review:
Today we are excited to share with you a great little terrain kit from 4Ground, a UK based company specialising in 15 & 28mm building and terrain kits which are laser-cut from wood. The product we’ve been testing out is 4Ground’s Damageable Walls, an idea which fits in with 4Ground’s general theme of creating terrain that is part of the game, not just a table accessory. As the name says, these are walls which can have chunks blown out of them during game play!