This is a top quality jump that meets all the standards for AKC and USDAA dog agility trial specifications. There are 12 height adjustments from 4" to 26" (every 2") and the heights are clearly marked (engraved) on the side bars for quick and easy changes! The jump cups are permanently fixed and will not slide off their measurement. In addition, one of its best features is actually the fixed bar on the bottom (allowed by the trials). This keeps the jump positioned just right so the bars don't fall off so easily. You can actually move the jump in one piece. It features 1-1/4" OD diameter pipe that is furniture-grade and UV-resistant, and includes FREE colored tape for you to decorate the jump. All this, and at an affordable price too!