GelMelt ice dam channel maker. Features a unique gel formula that is a long lasting and powerful ice melter. Each tube contains (1) 16 inch long x 2 inch diameter gellified magnesium chloride. Place the extruded tube perpendicular to the roof line before or after the creation of an ice dam to carve a channel or pathway for the water to runoff the roof preventing ice and water build-up. Also fits easily into gutters. Long lasting and impervious to rain. Biodegradable and environmentally friendly.