This Trim-Lok Black Door Seal is a must-have for any boat owner! It is designed to provide a tight seal around doors and hatches, preventing water and air from getting inside. The seal measures 3/8″ x 5/8″ and features a .375″ bulb that compresses to create a secure seal. Crafted by TRIM-LOK, a leading manufacturer in the boating industry, this seal is built to withstand the harsh marine environment. It is easy to install and will provide long-lasting protection for your boat. Ideal for use on doors, hatches, and compartments, this seal is a great addition to any boat.