Dream. Build. Play.

Introducing The Boulder Set: a two-piece add-on set built extra thick to build the most indestructible fortresses and more!

The Boulder Set is made up of two (2) pieces:

  • 2 x Large Rectangles - Two (2) rectangles measuring 14.5" x 14.5" x 21.5" of foam with a density of 1.8lb/ft3 and Indentation Load Deflection (ILD - which is a fancy way of measuring firmness) of ~45. 
  • Single-Brushed Microsuede - Your Boulders come with a single-brushed microsuede cover for silky softness, strain resistance, shrink resistance, pet friendliness, and more! The perfect cover for your add-on! 
  • Protector Cover (Not Pictured) - We all know kids spill things, so your Boulders are lined with our water-resistant covers, which are easy to wipe down and protect your foam!