Bel-art graduated griffin low-form beaker 262130000, 250ml capacity, 50ml graduation, clear, 6/pk griffin low form polypropylene beakers are translucent, chemical resistant and will stack without sticking together. Raised numeric graduations show approximate volume ( 5%). All sizes are steam autoclavable at 121c (250f) and microwavable. note: sold in inner pack quantity includes 6 beakers, priced per each pack.