The listings show two material types: a molded soft-gel material and a material listed as "Methyl Methacrylate Styrene."
Most kits include nail tips plus application tools and supplies such as regular or toenail glue, adhesive/jelly tabs, a mini or double-sided nail file, a cuticle stick, and a prep/cleaning pad; some also include a storage box and an instruction manual.
Some listings include an upgraded extra size for the big toe and a thicker construction (listed as "4X thicken (2mm)") — features intended to help hold toenails in place and reduce the risk of ingrown nails.
The listings primarily show squoval (squared-oval) and almond shapes.