Softens with heat to clay-like pliable consistency so you can form it around an endless variety of workpieces. Turns rock-hard once it cools to hold items securely. Neutral gray in colour to prevent eyestrain, even under bright work lights. Economical and practicalcan be reused again and again. Heat in a microwave oven on the microwave-safe pad, in a conventional oven, in hot water or with a heat gun (be sure to follow proper heating instructions).The item "GRS Thermo-Loc 2 sticks, for stone setting and engraving" is in sale since Tuesday, September 15, 2020. This item is in the category "Jewelry & Watches\Jewelry Design & Repair\Jewelry Tools\Engraving Tools". The seller is "terestrialtreasures" and is located in Dartmouth, Nova Scotia. This item can be shipped to United States, Canada.