No prize value is transferable or exchangeable, nor can it be redeemed for cash.
From the smh.com.au
Also, for my wife and me the cost is $480 one way for our exchangeable tickets.
From the economist.com
The prizes are not exchangeable or transferable and cannot be taken for cash.
From the nzherald.co.nz
Tickets and prizes are non-transferable, nor are they exchangeable for cash.
From the stuff.co.nz
For most of this country's history, the dollar was exchangeable into gold or silver.
From the online.wsj.com
Labour, therefore, is the real measure of the exchangeable value of all commodities.
From the en.wikipedia.org
This prize is not transferable, exchangeable or redeemable for cash or other prizes.
From the smh.com.au
The $10 bill would be exchangeable for Big Macs and small drinks for a family of four.
From the theatlantic.com
The prize is not exchangeable or transferable and cannot be taken for cash.
From the nzherald.co.nz
More examples
Suitable to be exchanged
Convertible: capable of being exchanged for or replaced by something of equal value; "convertible securities"
Capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability; "interchangeable electric outlets" "interchangeable parts"
(exchangeability) the quality of being capable of exchange or interchange
(Exchangeability) In statistics, an exchangeable sequence of random variables (also sometimes interchangeable) is a sequence such that future samples behave like earlier samples, meaning formally that any order (of a finite number of samples) is equally likely. ...
(Exchangeables) (XB) are bonds which may be exchanged into shares other than those of the issuer. Strictly speaking, they are not convertibles, but they share certain common evaluation characteristics.