Dressage Horse Round Lever Back Earrings or Stud Earring Choice. Part of the original Dressage Horse Classic series, these are the small earrings in a right and left version. These measure 1/2 inch round and 1 1/8 inch tall overall with the leverback. The stud measures 1/2 inch round. This horse has a double bridle and braided mane. Sterling Silver