Trade Associates TADAF44L 6 Piece Dura-Block Sanding Kit AF400 (11in.L x 1 3/8in.W x 3/4in.H) AF4401 (5 1/2in.L x 2 5/8in.W x 1 1/2in.H) AF4402 (11in.L x 2 5/8in.W x 1 3/8in.H) AF 4403 (16 1/2in.L x 2 5/8in.W x 1 3/8in.H) AF4404 (11in.L x 1 1/4in. thick)