Ensure the mat and the pebbles are completely clean before starting.
Arrange the rocks on the mat so that they fit together like puzzle pieces. You don’t want large gaps in between. This part takes the longest!
Dab a small amount of glue on the back of a pebble and press it firmly onto the mat for a few seconds each. Follow the instructions for the glue you’re using.
Allow the glue to fully dry and cure before moving the mat.
Notes
Note: Make sure the glue will bond to both rubber and rock.