Foam beads are small, lightweight pellets made from materials like polystyrene or polyethylene. They are commonly used in various applications, including packaging, insulation, and crafts. Their buoyant nature makes them ideal for filling items like cushions and stuffed toys, providing comfort and support. In the crafting world, foam beads are popular for creating decorative items and sensory toys. They can be found in different colors and sizes, allowing for creative projects. Additionally, foam beads are often used in aquarium filters to promote water circulation and provide a habitat for beneficial bacteria.