Final step in our patio project…rock glue! (It also works for mulch). It hasn’t even cured fully and seems to be working! Given the imperfect nature of the bluestone pavers (different thicknesses, sizes & shapes), some of the gaps are bigger than others and the pea gravel needs an anchor (the base is sand). Simply mix with water & spray the mixture where you want (it’s ok if it goes onto other areas a bit). Thin coats are best (2-3 are recommended) but I was a little heavy handed in some areas & other than looking a little darker than other spots, it looks fine! It goes on a surprisingly pretty cornflower color but dries clear. Supposedly will last a year or two but nothing is a given weather wise anymore so we’ll see! Amazon; gardening, hardscape, landscaping, Lowe’s Home Improvement, DIY home projects LTKFindsUnder50 LTKSeasonal LTKHome