Kill two birds with one stone, grind one file and roll the other, which is convenient and easy to use 60 knife edges work together, and the polished surface is delicate and flat High hardness material, sharp blade, fast grinding file, durable and not dull The rolling effect of double-row rolling wheels is uniform and powerful, which ensures the compact adhesion 93x21mm, compact and portable Stainless steel, not afraid of rust, exquisite workmanship Usage: Grinding file: centering on the crevasse, the area is slightly larger than the tire patch, and the impurities on the surface layer are ground to expose pure colloid! Rolling: Roll tire repair film back and forth with rolling wheel to make it stick more tightly! Specifications: : DUUTI Diyoutu Name: filing and pressing tool Model: TL-101 Material: stainless steel Applicable: repair tires Size: 93x21mm Weight: 22g Package Included: 1*File