Your adjustable feet made in 4 steps with letraindejules.fr
Step 1 - the material
Four feet equipped with rubber pellets that you can buy in the supermarket DIY department (at a low price of € 4) or specialty stores.
Hard to find?
Replace with round or square head studs.
Then add a piece of self-adhesive felt.
This will avoid scratching the floor of sports halls during your exhibitions (= boyfriend with [...]