PandaEar PandaEar 3 Pack Baby Bowls with Suction| Stay Put Silicone Food Bowl for Babies Kids Toddlers Infants| Food Grade Soft Safe BPA-Free Silicone (Multi-Color)

Suction bowls do not work well on porous surfaces, like untreated tiles, fabric, or rough, soft plastics. Suction bowls form an airtight seal on an even surface. Flat surfaces of glass, acrylic, Formica, and stainless steel are all great places to make suction bowls stick better.