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$9.99
Pumice Factory GeoChem—
$9.99
The Story
WARNING: CHOKING HAZARD - Small Parts. Not for children under 3 years.
Two chemicals are mixed together to make a polyurethane foam that is buoyant and remarkably similar to pumice.
Includes all the materials for the activity plus a sample of pumice.
Description
WARNING: CHOKING HAZARD - Small Parts. Not for children under 3 years.
Two chemicals are mixed together to make a polyurethane foam that is buoyant and remarkably similar to pumice.
Includes all the materials for the activity plus a sample of pumice.
