2 x Stick-It Tile Repair Kits.
Fix loose tiles without ripping them out. Inject epoxy through grout lines or drill holes. Works on ceramic, natural stone, and floor tiles
Summarised from product information:-
- Repair shaking and drummy ceramic tiles
- Repair floor and wall tiles, including natural stone
- Just Drill through the grout lines or into the tile adhesive and stick back tiles without having to remove the tiles