KnuckleStrutz Off Roadz Construction Toy Set Unlimited Build-outs Right Out of the Box The Off Roadz Set includes 227 pieces plus 12 tires to make a 4x4, hyper Bike, Trailer and Path Crusher. The construction possibilities are endless with these snap-together connectors and joints. Trekz 44, Dirt Bike and trailer can all be built at same time Pieces can rotate and twist, creating models that move and morph.