Yegi Russian Volume Eyelash Extensions are Pre-Made fans that come in Mix Trays from 9mm-14mm in .07 thickness. They are made for easy application and long lasting results for your customers. They work best with a 1-second glue. We recommend the Yegi Mega Hold Glue for best results. The fans are widely fanned and heat bonded. 100% cruelty-free and latex-free.