The wagering volume here is a flat $0. No required turnover, no qualifying bets, no working toward a target before cashout becomes possible. A 0x requirement on a bonus-only structure means your deposit stays untouched as well - nothing is locked behind conditions, and your winnings are withdrawable the moment they hit your account. Compare that to a standard 35x offer, where clearing even a modest bonus can take thousands of spins at maximum bet.
The headline $10,000 figure comes with a catch worth understanding: it's the top prize on a random wheel, not a guaranteed match. Your spin tier depends on deposit size. A $25 deposit gets you the Bronze wheel with prizes up to $2,000 or 200 free spins, $50 unlocks Silver with up to $4,000 or 400 spins, and $100 or more reaches Gold, where the full $10,000 or 800 free spins become possible. You could land well below the maximum on any tier, so treat the headline number as the ceiling rather than the expectation.
Free spins, if that's what the wheel awards, play exclusively on Big Bass Bonanza and carry the same wager-free status, which means every dollar they generate is yours immediately. The single-game assignment limits where you can use them, but a popular high-volatility slot is a reasonable home for them. The tightest condition in the whole offer is the expiry: spins must be used within one day of landing. Since there's nothing to clear afterward, that window only affects playing the spins themselves - claim when you actually have time to sit down and use them.