1200 × 800
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900 × 600
Source:https://www.musebridals.com/products/mermaid-backless-evening-prom-dresses-long-deep-v-neck-party-prom-dress-mp619
1500 × 1000
Source:https://diggzprom.com/products/cd-ch235-full-sequin-fit-flare-prom-gown-with-plunging-v-neck-strappy-open-back
1666 × 1000
Source:https://www.couturecandy.com/products/clarisse-810491-open-back-prom-dress
600 × 286
Source:https://www.dollygown.com/products/backless-sky-blue-floral-lace-formal-prom-dress-mermaid-evening-dress-with-court-train-gdc1053
1200 × 800
Source:https://dreamdressy.com/products/white-iridescent-sequin-tassel-backless-long-prom-dress-with-slit
960 × 640
Source:https://spybaby.com/product/jovani-08340-turquoise-high-slit-low-back-prom-dress/
1666 × 1000
Source:https://www.simplydresses.com/products/faviana-fa-22-s10684-dress
930 × 620
Source:https://www.loveangeldress.com/products/open-back-pink-lace-mermaid-evening-prom-dresses
960 × 640
Source:https://www.glassslipperformals.com/products/jovani-08099-long-fitted-iridescent-sequin-mermaid-prom-dress-v-neck-formal-gown
