Bel-Art Snap Cap Styrene Vials; 3 dram (11ml), PE Cap (Pack of 144) (F17575-0003) Rigid-wall styrene containers with tight fitting polyethylene snap-on caps Glass-clear for complete visibility Excellent for storing dry materials, powders, tablets, and more Heavy walls for long service and can be used at temperatures below 70 degreeC (158degreeF)