New! Cashel Slow Feed Top Load Hay Bag$138. 00 Made of tough poly for excellent durability, with a mesh bottom, this allows dirt etc to fall thru, and also allows air flow. Easy to hang in stables or on any railing floats etc. You are able to fill it with one hand , and there is a top flap that prevents hay coming out the top. This bag is NO SPIN, due to an adjustable back strap that keeps the bag in place. Feed squares are 2 1 2 or 6. 35 cm Size of bag overall: 24 1 2 x 20 x 9 1 2