Blocking Materials

 is a decoration.

It can be found in a Decoration Chest.

Trivia

 * is one of the few decorations to be in the game since its.
 * The purchase cost was discounted to 10 during the Mother's Day Sale 2016 on 7th May 2016.
 * was the fourth milestone prize in the Mini Event on the 16th May 2016.
 * was the fourth milestone prize in the Mini Event on the 25th May, 1st June, 8th June 2016.
 * lost its premium status (20) with.
 * was added to the Decoration Chests since until.