Ardell LashGrip For Strip Lashes, DARK (7 g)

It is a latex based adhesive meant to be temporary and can be removed quite easily.
Suggested use
Easy 3-step application
Check fit: Align band with natural lash line to check fit. Trim excess if necessary.
Apply adhesive: Apply a thin line of adhesive along band. Wait 30 seconds to set.
Apply lashes: Using the applicator, place lash close to the natural lash line. Secure lash band by pressing onto lash line.
To remove, gently peel off lash strip starting at outer corner. Remove used adhesive from band and place lashes back on tray for re-use.