2 1/2 inch (6.35 cm) Tall
Cones feature a built -in base with correct height (1 3/4″) and angle (8 degrees) to help insure reproducible firings.
25 Cones per 1 Box.Pyrometric Cones for Ceramic Arts
Pyrometric cones measure heat-work (the effect of time and temperature).
Pyrometric cones are slender pyramids made from about 100 carefully controlled compositions. Each cone number is unique in measuring temperature within a small temperature range (less than 30C).Cones measure the amount of heat absorbed. As the cone nears its maturing range, it softens and the tip begins to bend, drawn down by the influence of gravity
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