Feature: 1. Made from high-quality cotton, free from second-hand or recycled cotton for healthy and safe use. 2. Dyed using natural plant-based dyes for an environmentally friendly and safe product. 3. Cotton treated with degreasing technology for enhanced softness and superior water absorption. Winter care tips: 1. Place the mouse cage in a location protected from drafts. 2. Provide sufficient sawdust to allow hamsters to create warm bedding for winter. 3. Place sleeping cotton inside the hamster's house; hamsters will naturally build nests. 4. In cold or windy weather, cover the cage with a breathable fabric cover or add extra cotton for warmth. Specifications: Name: Colored cotton ball Color: 6 colors available Weight: Approximately 0.38 grams per piece, 100 pieces per pack Suitable for: Hamsters and small pets Package Included: 100 x Cotton balls Notes: - Please refer to the listed measurements. Slight measurement variations are normal. - Color may vary slightly due to monitor settings or lighting conditions. Please refer to the actual product.