1. Material: 304 stainless steel 2. Weight: Small: 100 g, Medium: 130 g, Large: 180 g 3. Size: Small: 5.5 x 5.5 x 16.5 cm, Medium: 5.5 x 5.5 x 21.5 cm, Large: 7 x 7 x 21.5 cm 4. No drip or leak, automatic opening and closing 5. Small and portable, easy to clean
