Instapak Quick RT Polyurethane heavy-duty expandable foam bags. Protect anything and everything, anywhere. No equipment required, completely portable. Works the same as Instapak Quick without the need of a preheating warming unit. Recommended temperature range is 65 - 90 degrees fahrenheit. Chemicals are activated in the bag so no clean up is required. Available in blue color. Measures 20-inches length by 18-inches width.