GlasMasters Polymer Concrete Hand Hole Enclosure Assembly, 24" x 36" x 36", Tier 22, No Logo. This polymer concrete underground hand hole enclosure is part of the GlasMasters AP polymer concrete line. Original catalog description: Hand Hole Assembly, Polymer Concrete, 24" x 36" x 36", Tier 22, Open Bottom, 1 Piece Cover, Blank Logo