640 × 640
Source:https://www.aliexpress.com/i/1005004770789417.html
900 × 1074
Source:https://www.amazon.com/Trary-Womens-Round-Strap-Ballet/dp/B07SMQKWSF
1946 × 1946
Source:https://www.kelsidaggerbk.com/products/frankie-black-velvet-ballet-flats
750 × 750
Source:https://naturalfootgear.com/products/ahinsa-ananda-barefoot-ballet-flat-black
1200 × 1200
Source:https://rothys.com/products/womens-pointed-toe-flat-black
3600 × 2400
Source:https://piperandscoot.com/products/seychelles-far-too-kind-flat-in-black
560 × 560
Source:https://www.drcomfort.com/business/merry-jane
1268 × 944
Source:https://www.popsugar.com/fashion/best-black-flats-for-women-46673521
800 × 800
Source:https://www.temu.com/womens-flat-shoes-closed-toe-bow-decor-ballet-flats-g-601099511865159.html
1050 × 700
Source:https://www.whowhatwear.com/flats-and-dresses-outfits