These Pyrex high - temperature glass cups are ideal for situations where visibility matters, like in corners or inside pipes. They belong to the 1 - 1/8' x 1 - 9/32' Series 2 and come with a 1/2' diameter gas saver.

To use these Pyrex glass cups, simply place them in the desired location where you need better visibility, such as corners or inside pipes. When handling, be careful as they are made of glass and can break if dropped. Avoid exposing them to sudden temperature changes as this may cause cracking. For maintenance, clean them with a mild soap and warm water. Rinse thoroughly and dry with a soft cloth. Do not use abrasive cleaners as they can scratch the glass surface.