Square Shape: this foam gap filler is designed with square shape, allowing it to fill cracks adequately, and the foam material makes it enough to be soft, flexible and bendable Size Information: the foam backer rod measures approximately 5/8 x 5/8 inch and is 65 ft/ 20 meters long, so there are sufficient length to meet your daily needs to use Easy to Apply: this crack filler foam can be applied to fill cracks in floors, walls, windows, doors, air conditioners, etc.; You can trim it to the right size you need with scissors, then press it into space to complete the seam, they will help you have a neat surface Wide Applications: the backer rod 65ft is suitable for road cracks, panel cracks, wall joints and many other cracks; And you can also use it as a door seal, window seal, air conditioner or refrigerator sealing material, and as sound absorbing material Quality Material: the backer rod is made of quality foam material, this backer rod 5/8 inch is safe, non absorbent, and can be applied to fill the space or joints to make your room more complete Features: You can send this foam backing rod as a nice present choice for friends, relatives, family who have the need for caulking, sending your care and love. These foam filler for gaps are practical and convenient, which can be applied to fill the joints and reduce the amount of caulking agent Specifications: Material: foam Color: gray Size: 5/8 x 5/8 inch, 65 ft/ 20 meters long Package includes: 1 x Foam backer rod Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Winding risk, keep away from little kids.