Cryogenic labels, round, for 50 ml tubes, white 

Labels for cryogenic storage purposes. Round shape. Withstand extreme cold temperatures from -196º C – 121º C. Special material engineered to expand and contract with dramatic temperature changes. Permanent adhesive. Available in rolls in various sizes of one colour or assorted. Can be written on with a pen, pencil, or permanent marker without smearing 

reference: CRLA-D4W-500, description: diameter 25 mm&comma: for 50 ml tubes&comma: white , pcs/pack: 500