i haven't heard all the conversation on the lap looms (not sure what type
that is) but i buy my looms from dick blick they are heavier than regular
cardboard, more like chipboard. the warp (vertical) slots are already precut
and they come in varying sizes, cheap too! hold up for 3-4 years before
needing replacements. the ones i use are very appropriate for 6th graders, i
even teach them the vertical dovetail and indian beading along with regular
vicki in tn.