A polyol monomer comprising the formula:R1 and R3 are \u2014H, aliphatic, aromatic, or ether; R2 is aliphatic, aromatic, ester, ether, or acrylic, and R1 contains a hydroxyl group, R3 contains a hydroxyl group, R2 contains \u2014O\u2014CH2\u2014CH\u2014, or any combination thereof. The package includes a bottom plate and a cover that can be removed from the bottom plate. The lateral surfaces of the working portion extend along at least a portion of the gripping portion. An electronic sensor senses the location of each of the container filling holes and a controller connected to the electronic sensor and the carriage assembly moves the filling lance to coaxial alignment with the selected container filling hole and then into the selected container for filling thereof. The active element includes a first segment positioned in a top surface plane and connected to a second segment oriented at an angle to the top surface.