Several sizes. Small, expanded dimensions: 24.5 x 20 x 8.3 cm. Large size: 29 x 24 x 9.3 cm.Materials: The collapsible dish rack is made of environmentally friendly silicone and plastic materials, non-toxic, dishwasher safe and durable for durable in use, safe for food and family.Space Saving Design: The dish racks are collapsible, so they don't take up much space in kitchen cabinets. Stack it on top of other kitchen utensils in your cupboard or set it up on its side and keep your space tidy. Keep your kitchen clean and tidy.Portable: Compact and lightweight, the compact dimensions of this small silicone colander make it the perfect companion for a camping trip, picnic or to keep it handy hand in your RV.Muti-functional: Works to drain most foods like spaghetti, pasta, potatoes, broccoli, beans, carrots, spinach and other vegetables. Use these filters to rinse salad leaves, fresh fruits and vegetables.