1) pustress dice made of pu 2) Pantone color system 3) Logo imprinting available 4)Nontoxic and soft ball,Suit to EN71&CE pu dice,pu stress dice,anti stress dice 1) Material: PU foam2) Size: 6*6*6CM3) Logo Any customer design are welcome! we can open new mould for new design and new size.Certificate: EN71(PAR 1/2/3), CE, AZOPacking:12pcs/oppbag,500pcs/CTNMeas:54*48*42CM