Safer and softer than traditional horseshoes, the Champion Sports Rubber Horseshoe Set can be used indoors or outdoors for total versatility. The colorful horseshoes are easy to spot for both players and spectators. They come in two different colors for competitive play. Ready to play right out of the box, this rubber horseshoe set comes complete with horseshoes, protective playing mats, bright pegs, and dowels. Playground/Gymnasium Sets Type: Rubber Horseshoe.