Brand New And High Quality. Silicone Material, Good Elasticity, Not Easy To Deform. High And Low Temperature Resistance, Good Flexibility. Double Sound Insulation, Self-Adhesive Strong Adhesive, Strong Stickiness, No Trace And No Residue. Easy To Cut And Easy To Install, No Need Specialist Tool. Reduce The Noise From Outside And The Sliding Door Slamming, Give You A Quiet And Comfortable Living Environment.