We are Cypress Rowe Outfitters. Our mission is to make your outdoor experience better. If you have problems with your bimini top boot fitting, or just need a replacement top, this is your solution. This standard size bimini top storage boot is designed to fit standard size bimini tops common on pontoon boats with standard size 7/8" or 1"tubing in round or square. These will easily fit up to 8 1/2 feet wide, and up to 20" or a little bigger in circumference. These have the light cutout, and will solve your bimini boot issues!! Lifetime Warranty if you love it, free returns if you don't! We are Cypress Rowe Outfitters, and we appreciate your interest.