Usage and care: Surfaces must be smooth, slick and non-porous. Lulalu® requires a clean, dust-free, and oil-free surface. Note some stainless steel cleaners/polishers, especially fingerprint-free formulas, leave an oily film that prevents Lulalu® from gripping. Wiping off the residual oil and switching cleaners will make Lulalu® happy. If Lulalu weakens, use a water or vinegar-based cleaner to wipe away dirt and grime from the grip surface. Wipe dry after cleaning and Lulalu® is ready to grip again.