The Universal Accessory Bag attaches to all hub-style ground blinds in seconds. The two webbing straps wrap around the cross rails of the hub blind and attach with snaps. The 8"x10" pleated bag is large enough to hold multiple calls, along with folding saw, snacks, etc. The bag also has a 4-1/2"x5" front zipper pouch which will hold mouth calls, hunting license or other small items. There is also a front mesh pouch for holding slate call, striker, grunt tube, snack or other items. Also attaches to all treestand shooting rails and some treestand seat brackets.