This trendy, innovative, new modular furniture is designed for anyone The Half Circle Add-On includes 1 half circle piece and is a stylish addition to any room and to any existing Mod Blox set. Build a new adventure every time you play, then create a whole new journey the next day! The fabric is soft microsuede so comfortable you can relax or play! High-quality, high-density polyurethane foam Mod Blox uses high-quality, high-density polyurethane foam that has been certified through the CertiPUR-US program which prohibits the use of any CFCs, or other ozone depleters, in the foam manufacturing process. Durable YKK zippers for each piece with a pocket to hide each zipper for a seamless look We use high-quality YKK zippers for each piece with a pocket to hide each zipper for a seamless look. Each zipper matches the fabric color of your choice that will provide a stylish addition to any room. Easy to grip handle that makes play, storage and transport a breeze for any age. Each cushion comes with an easy to grip handle that makes play, storage and transport a breeze for any age. Each piece is tightly sewn with the finest workmanship and will last for years of creative fun. CertiPUR-US comes with Comfort and Confidence Certified flexible polyurethane foams meet CertiPUR-US program standards for content, emissions and durability, and are analyzed by independent, accredited testing laboratories. CertiPUR-US approved foams are: Made without ozone depletersMade without PBDEs, TDCPP or TCEP (“Tris”) flame retardantsMade without mercury, lead, and other heavy metalsMade without formaldehydeMade without phthalates regulated by the Consumer Product Safety CommissionLow VOC (Volatile Organic Compound) emissions for indoor air quality (less than 0.5 parts per million) Administered by a not-for-profit organization, CertiPUR-US is a certification program for flexible polyurethane foam used in bedding and upholstered furniture. Mix and Match Colors with Add-Ons Add-On to your existing Mod Blox set! Create even bigger adventures with Mod Blox Add-Ons! This half circle set will make a perfect addition to your Mod Blox set. Now you can create even bigger forts and have even more fun with Mod Blox Add-Ons.