Abstract: A single continuous length of bendable material is fixedly connected to a cup holder. The cup holder is foldable flat with a plurality of pre-bent or creased regions. The cup holder and/or length of material can fold flat onto each other and the length of material has a bent configuration, aided by the creases, which forms a triangular region and a fold over itself to form a resilient holder of a cup which a straight flat longest end which fits into a seat pocket or the like. This bent configuration can be formed with five flat sides and four bends. The first and fourth bend are adjacent to each other in the folded condition and the triangular region is formed between a first, second, and third bend with the fourth bend meeting the first bend.

Abstract: A method and kit for determining the presence of a polyvalent ligand in an aqueous fluid. The method involves incubating the fluid with an immobilized antibody to the ligand to form an immobilized ligand-antibody complex, then incubating the immobilized ligand-antibody complex with a solution of a soluble complex of a second antibody (to the ligand) and a labeled binding protein, such as protein A. The labeled binding protein is specifically bound to the Fc portion of the second antibody. The unbound second antibody and labeled binding protein are washed from the immobilized complex, and the presence of bound labeled binding protein is determined as a measure of the concentration of the ligand in the aqueous fluid.