Trainer's Master Jump Saddle Medium-deep knee blocks with soft cushioned flaps aid rider stability. Beautiful, affordable leather. The X-Change System Series II gullet fits several horses. X-Change System Using only a screwdriver, the rider may alter the tree's width in 6 easy increments. So easy! This system doesn't modify the saddle's appearance. Similar strength and feel. The tree fits any horse's withers and back. Narrow to Extra Extra Wide trees are available. Trainer’s - Feel the Difference Features: • Square Cantle • Knee and thigh blocks • Trainer’s X-Changesystem with easy tree size adjustment from narrow to extra wide • Flock filled panels • Quality full leather Leather: Grained Colours: Oak Bark or Black Sizes: 16", 16.5", 17", 17.5", 18" Warranty: Tree- 5 years