feature: Keep the water clean: adopt the principle of biological filtration and use multi-stage filtration to achieve the purpose of stable clean water quality. Description: Name: Mini Filter  Weight: 51g  plastic neutral packaging Size: 9.8x3cm Packing list: 1 x Mini Filter  Note: Different displays may cause the color of the item in the picture a little different from the real thing.  Manual measuring,please allow 1~3mm error,thank you.