Blenheim Balance Strap Black. The Blenheim Balance Strap offers comfortable rolled leather strap that can be attached to your saddle. The Blenheim Balance Strap is ideal for rider who need some extra stability in the saddle. The Balance strap can be used by all level riders as beginners or disabled riders can use this whilst learning balance in the saddle yet more experience riders may use this to give a more upright position and for a little more security when riding young or nervous horses/ponies.