The Frost King Patio Weather strip (also known as a "center post weather strip"), draft stopper eliminates the gaps between the glass panels on your home's patio door. Gaps in door panels can allow air, dust and insects to enter the home, creating unnecessary expenses. The durable, self-adhesive plastic weather strip helps to seal these gaps, creating a tight seal. It is 84 in. W x 1.87 in. L and fits most patio doors. Easy to install determine length then cut to fit-peel off backing paper and stick to movable slider. Make sure door is closed and gap is sealed completely always make sure surface is clean and dry before applying, do not apply below 50° outside temperatures. Color: Clear.