Convert your Size 1, 2 or 3 Special Tomato Soft-Touch Sitter into a supported special needs seating system – a Floor Sitter Kit. The Soft-Touch Sitter attachment straps secure the Sitter to the Floor Wedge. The Floor Sitter Wedge is made our soft to the touch material that is anti-microbial, impermeable to fluids, latex-free and peel- & tear-resistant.