Sizes 6.5” and 8”. The small has 1/4” plexiglass and the large has 3/8”. They both have cherry wood so n the thicker bottom and walnut on top. The larger ones are 1 1/4” cherry and 3/4” walnut with the smaller having 1” cherry and 5/8”(approximately)walnut. They have 4 small 3/8” rubber feet on the bottom a black 3/8” foam padding where the bong sits and the light chord is black also. The led light puck has a power switch on the chord and is 6000 lumens(bright!). It’s been spray finished with a polyurethane spar(floor) varnish.