uxcell Plastic Door Window Mounting Locking Hole Plugs Button Cover 8pcs White

first you'll need to know the thickness of the glass you'll be installing to order the proper part to ensure the proper fit of the gasket you'll need to also establish its length you do so by measuring the height and width of the glass take the measurement and multiply it by two this will give you the overall length of the part you need if you're cutting multiple lengths for the same repetitive application it may be prudent to mark the length on your bench to speed up the process keep in mind it will provide you with some extra lengths all rubber overtime will experience some shrinkage causing your gasket edges to separate the trick is to push your ends together leaving a bit more material in that loop and then pressing that loop down this forces more material into the application so that the locking gasket is not stretched you may use any lubricant from soap and water to a silicon-base