Some clients may prefer biting into a softer surface as they work their way through the Bite Block hierarchy. These new, softer Bite Blocks are the appropriate choice for them. The Sensory-Friendly Bite Blocks work in exactly the same manner as the original version, but are constructed of a softer, more pliable material. Each package includes the two sets of six Bite Blocks required to complete Sara Rosenfeld-Johnson’s Bite Block Hierarchy. Instruction sheet included.