This backpack has an interior space considerably larger than its outside dimensions, being infinitely vast beyond its opening point. The backpack can hold an infinite amount bits for crafting.
If the bag is overloaded, pierced, or torn, it ruptures and is destroyed, and its contents are scattered in the Astral Plane. If the bag is turned inside out, its contents spill forth, unharmed, but the bag must be put right before it can be used again. This bag can ONLY hold crafting materials, and will not allow any other items to be placed within the space inside.
Placing a backpack of bits inside an extradimensional space created by abag of holding, handy haversack, portable hole, or similar item instantly destroys both items and opens a gate to the Astral Plane. The gate originates where the one item was placed inside the other. Any creature within 10 feet of the gate is sucked through it to a random location on the Astral Plane. The gate then closes. The gate is one-way only and can’t be reopened.
Notes: Utility, Container