zaccai
In this spinning wheel design, the wheel is 30 inches in diameter. The sections labeled 'ZACCAI' have a black background with the logo in white for strong contrast. The 5% discount section uses a yellow background to stand out. The two 10% sections are in green. The 'Free T-shirt' slice is designed to be smaller than the other segments, making it a bit of a special highlight. All the 'ZACCAI' segments are uniform in size for consistency. Finally, instead of the word 'Coupon,' the word 'Voucher' is used. This description should help clarify the design choices.