1. Material: ABS 2. Magnetic bottom cover, automatic closing, blocking odor 3. No need to install deliberately, just plug it in to deodorize 4. Automatic cover opening, very fast launching, no resistance 5. Internal bowl design, quick launch 6. Applicable pipe diameter: small 30-37 mm; large 37 mm or more 7. Weight: small 18 grams; large 19 grams 8. Dimensions: small 69.5x56x29.5mm; large 69.5x56x36.5mm