Inside the mini bucket, there's sliced fried chicken and mixed vegetables (corns, carrots, and peas) in a creamy sauce over rice. The price isn't bad at all at $20 HK (~$2.85 US).
And if you're wondering why KFC doesn't offer a bucket of fries (or why they don't offer fries at all here in the US), you might find this interesting:
And if you're wondering why KFC doesn't offer a bucket of fries (or why they don't offer fries at all here in the US), you might find this interesting: