Not all grommets are created equally! It may seem like a simple component, but we have taken the time to get the sizing, flex, and shape just right for a durable, safe grommet that is easy to insert and remove over and over again. Our Tough Tops feature a hole template engraved in the top so that the perfect hole can be drilled to accommodate a True Fit Grommet.
These seem pretty good (nice 'give' & squishiness), but the instructions don't seem to specify what hole size is best. I can probably wing it, but thought maybe you could let me know?