By Play: Brillant project developed by french diabolist and engineer Sylvestre Dewa, DEOS sticks are the favorite choice of the best diabolists all over the world! Simple, extremely light design and high quality materials make of them the perfect control sticks for any diabolo style: Metal tips made of a special lead-free hard aluminium that doesn't leave black marks on strings. The smooth rounded profile guarantees no friction for a longer string life. 8 mm crossed fibers carbon pipe extremely strong and rigid for best responsiveness. Soft silicone grip of 2 mm thickness for maximum comfort. PLAY has the exclusive permission to manufacture this excellent diabolo sticks and guarantees that all the technical features fully respect the original project.