The Special Tomato Soft-Touch Floor Sitter Wedge Only instantly converts the Size 1, 2 or 3 Soft-Touch Sitter into a supported special needs seating system _ a Floor Sitter Kit. Use the Soft-Touch Sitter attachment straps to secure the Sitter to the Floor Wedge. The special needs Floor Sitter Wedge is made from Special Tomato's soft to the touch material that has anti-microbial properties, is impermeable to fluids, is latex-free and is peel- and tear-resistant.