Material: glass, metal, liquid, plastic. Size: 2" W. x 4 1/2" L. (a) Description: clear glass tube - red liquid in tube - yellow plastic rounded fluted base - gold colored metal threaded end. (b) Description: clear glass tube - yellow liquid in tube - white plastic base - gold colored metal threaded end. (c) Description: clear glass tube - green liquid in tube - yellow and green plastic base - gold colored metal threaded end. (d) Description: clear glass tube - clear liquid in tube - orange and blue plastic base - gold colored metal threaded end. (e) Description: clear glass tube - blue liquid in tube - blue plastic base - gold colored metal threaded end.