Any brand name mentioned is just applied to show compatibility, not working as trademark. Features: Quality material: The adjustable clippers blade is made of stainless steel, corrosion-resistant and wear-resistant, the quality material can be applied for a long time, it is more pointed and stronger, thus it can work efficiently and provide better effects. How to replace: Adjust the blade to full forward position, and put the small top blade over the clipper drive finger, then place large bottom blade on top of small top blade, replace the screws and partially tighten. Make sure the extreme left hand tooth of top blade must be on the first small tooth of bottom blade. After blade is aligned, tighten screws, turn switch on and off a couple of times, and then check alignment of blades. Functional and practical: These replacement blades are designed with 2 holes for easy using, 2 different sizes of hole diameter are provided for your clipper, including 3 mm and 1 mm, they can be attached easily and also convenient to maintain, in addition, this blade can provide an even and clean hair cutting option. Specifications: Material: stainless steel Color: as pictures shown Quantity: 2 sets (4 pieces) Package includes: 2 Sets of clipper blades Note: Please allow a little difference in size because of manual measurement. Pointed items, please be careful when using and store them in places that away from kids.Package content: package contains 2 sets of clipper blades, convenient for your daily use and replacement; Color: as pictures shown. Functional and practical: these replacement blades are designed with 2 holes for easy using, 2 different sizes of hole diameter are provided for your clipper, including 3 mm and 1 mm, they can be attached easily and also convenient to maintain, in addition, this blade can provide an even and clean hair cutting option. How to replace: adjust the blade to full forward position, and put the small top blade over the clipper drive finger, then place large bottom blade on top of small top blade, replace the screws and partially tighten; Make sure the extreme left hand tooth of top blade must be on the first small tooth of bottom blade; After blade is aligned, tighten screws, turn switch on and off a couple of times, and then check alignment of blades. Quality material: the adjustable clippers blade is made of stainless steel, corrosion resistant and wear resistant, the quality material can be applied for a long time, it is more pointed and stronger, thus it can work efficiently and provide better effects. Wide compatibility: these 2 hole clipper replacement blades are compatible with 8148, 8504, 1919, 2241, 2240, 8591; Different from the size of screws, there are large screws and small screws, 8148, 8504, 2241, 2240 are small screws, 8591 and 1919 are large screws; Please make sure the matching model before purchase.Best Sellers Rank: See Top 100 in Beauty & Personal Care. Item Dimensions LxWxH: 5.91 x 3.94 x 0.39 inches. Material: Stainless Steel. Brand: Mudder. Color: Silver. Recommended Uses For Product: Professional, Clipping. : B07Z1P8H1Q. Manufacturer: Mudder. Date First Available: October 11, 2019. Item model number: Mudder-Adjustable Clippers Blades-01. Product Dimensions: 5.91 x 3.94 x 0.39 inches; 3.53 Ounces.