Features: Made of rubber and metal material, durable and wear resistant. Strong load-bearing, mute design, rotating flexible. Sliding effort, without effort, than the luggage wheels are easy to use. Easy to transform to any directions that you want, and spend little strength to move on. Long-term use, low wear, labor-saving and quiet, flexible rotation, large load capacity and stability. Specifications: Item type: luggage wheel Material: rubber + metal Color: black Size: about 50mm, 60 x 18mm Package includes: 4pcs x wheels 4pcs x axle 4pcs x screw 4pcs x wrench 8pcs x gasket Notes: Transition: 1cm=10mm=0.39inch 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. 1) We accept Alipay, West Union, TT.All major credit cards are accepted through secure payment processor ESCROW. 2 If you can't checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days. 1) WORLDWIDE SHIPPING. (Except some countries and APO/FPO) DHL UPS TNT FEDEX takes 3-7 days ,EMS takes 8-12 days. Post air mail need 2-8 weeks.But all of them are dependent on the country delivered to. 2) SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 1) Buyer's early confirmation will be highly appreciated after receiving the items. 2) Since your feedback is very important to our business's development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. 3) Please contact us before leaving any negative or neutral feedback. We will work with you to solve any problems.Thank you for your understanding!