Luggage Spare Wheel: Round 4-Hole Design, The Wheels Perfectly Fit Most Luggage, Rolling Suitcases, Light Weight, Heat Insulation, Moisture Resistance, Flame Retardant, Convenient Use, Etc. High Quality Leather Rolling Suitcase.Easy To Install: Left And Right Wheels, W041 Small Luggage Wheel, Please Check Wheel Shape And Mounting Hole Distance Before Purchasing. Easy To Install Without Complex Fixing Tool.Wheel Hole Distance: Measure Your Luggage With 4 Screw Holes, You Can Know If This Wheelset Is Suitable. The 4 Holes Of The Wheel Are 31Mm, 45Mm, 40Mm And 33Mm (Please Check The Picture Size).Diy Wheel: This Is A Diy Product. You Must Use The Hole In The Box To Enlarge The Hole To Match The Hole On The Wheel When You Install It.Note: Wheels Do Not Fit All Suitcases, Please Check Type And Size Before Ordering . If You Choose The Right Type, But The Hole Distance Of The Wheels May Not Be Completely Same, You Need To Drill A Hole On Your Suitcase And Then Assemble Them. You Can Also Contact Us To Choose The Wheel Type To Save Time.