Simply press this pre-cut, pre-measured rope caulk from Miles Kimball in place to form a weather-proof seal in seconds! Flexible, rope caulk plugs leaks in doors or windows, fills cracks and doesn’t need to harden or dry. Indoor/outdoor removable caulk seals wood, plastic, metal, masonry, glass and concrete. Specify length: 30 ft. or 90 ft. 3/16"dia.