What does Tenikle stick to?

Tenikle 360° can suction to any smooth, non-porous, and non-textured surfaces. Surfaces such as glass, porcelain, fiberglass, smooth, gloss painted wood or drywall, and shiny metal or plastic, or other non-textured. Keep the suction cups and mounting surface free of dust or debris.

Will my Tenikle stick to my phone case?

Phone cases free of stickers, seams, any any textures will work fine. If your phone case is an Otterbox, leather, fabric or has perforations or grooves, you might want to purchase Tenikle's Dot Adapters to make it compatible with your phone case. Or you can use the phone clip included with each Tenikle.