Just how important is the "type" of foosball you use? VERY VERY important! High quality foos tables are very particular about the balls they use. This kit includes the OFFICIAL foosballs for Bonzini (yellow cork), Dynamo (yellow soft urethane compound), Shelti Yellow (hard urethane compound) Shelti Orange (softer urethane compound)Tornado (red hard urethane compound). It also includes 2 more styles of cork foosballs and 3 slick hard plastic foosballs.