Available to be used.
That can be disposed of.
That is designed to be discarded rather than reused, refilled or repaired.
Any object that is designed to be disposed of rather than refilled or repaired.
Able to be traversed; navigable.
Able to be transferred to another person, with or without endorsement, in exchange for money.
Open to negotiation or bargaining.
Something that is open to negotiation.