The perfect way to carry your drink(beer, water bottle or even a wine bottle will fit in them) with you on a trail ride. Or your cell phone or whatever else you would like to put in them. They attach to your saddle horn with a buckle strap that adjust from 20″ to 30″. They have a tie string to tie into your rigging ring on the bottom of the back side to keep it from flopping. The bag is approximately 14″ by 6″. Hand made from tan chap leather with a dark brown trim and nickle buttons.