A chambered coverslip with 8 individual wells and a non-adherent surface for spheroids, organoids, and suspension cells. Superior to the standard ultra-low attachment (ULA) surfaces-stable, biologically inert surface for long-term experiments without any cell or biomolecule adhesion. Excellent microscopic quality without any autofluorescence - 100% surface passivation combined with the highest optical quality of the ibidi polymer coverslip. Pcs./Box: 15 (individually packed)Surface Modification: Bioinert: #1.5 polymer coverslip, surface passivation with Bioinert, sterilized