[Multi foam cotton swab] 250 printer cleaning cotton swabs with three shapes and sizes, covering most of the cleaning actions of the product. Foam tip swab is suitable for cleaning camera lens, keyboard, inkjet printer, optical components, computer motherboard, sensor, microscope, auto parts, etc. [High quality lint free swab] The foam tip cleaning swab is made of high quality open cell foam, which is firmly combined with the polypropylene rod and is not easy to fall off. The spiral tip swab of the clean room has high water absorption and is designed to clean small areas that are difficult to reach. It is allowed to enter very small spaces to remove surface contaminants. It has good absorption and solvent retention capabilities. [Size and structure of laboratory swab rod] Three types of foam sponge swabs, three sizes, sufficient quantity and style, are suitable for your purposes. Style 1: 6.62 inches; Style 2: 4.92 inches; Style 3: 2.51 inches [Safety and environmental protection] The sponge cleaning stick is made of sponge and PP, without adhesive, paint and silica gel. It can withstand slight scrubbing without damaging or leaving any lint, and can be recycled after use without polluting the environment. Colour:As Shown Material:Plastic Package Contents: 250 x swabs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.