Mermaze tails are removable! It´s a bit tricky but when you get the hang of it the customization options are really awesome! Details in comments with the video where I learned how
Mermaze Mermaidz™ Salon & Spa Playset with Lights, Bubble Wall, Working Shower, Bathtub, Beauty Station, and 19 Accessories - Walmart.com
Mermaze Mermaid Winter Waves Nera Fashion Doll with Color Change *NEW* 35051585404 | eBay
Mermaze Mermaidz™ Salon & Spa Playset with Lights, Bubble Wall, Working Shower, Bathtub, Beauty Station, and 19 Accessories - Walmart.com