Specifications:Material: Steel and TPR RubberWheel diameter: 50mm(Approx 2 inch)Stem Length: About 22mm (7/8 inch)Stem Diameter: Approx 10-11mm (7/16 inch) (Look at the picture)Color: BlackPackage Includes:5 x Chair Wheels with BoxWARRANTY SERVICE:If you have any issues of the product you received, please be at liberty to touch us, and we are able to certainly provide you with an answer (we will refund or resend it directly).Notice:1.Please enable 1-3mm error thanks to guide measurement,please ensure you don't intellect before you bid.Four Bearing Load Bearing UpgradesCan Withstands Loads Up To 700lb.All inside elements fabricated from advanced grade metal make the caster wheel extra durable, sturdy to use.SAFE FOR ALL FLOORSEach rolling chair wheel is encased in TPR delicate rubber guaranteed to not scratch any surface.Quietly gliding over carpet, tile or hardwood with out scratching, preserve your floor.Bearing Protection CoverIt won't get stuck on shag carpet or hair or debris.TPR Soft Rubber Materialit can keep your chairs transferring smoothly and quietly. No extra squeaking and rattling.Universal Fit SizeThe length of the stem is 11mm, which is appropriate for all workplace chair wheels.PAYMENT:- We accept all primary fee method, including Escrow, Alipay, T/T, Paypal, West Union,and Credit card and so on.SHIPPING:- Your items will be shipped out inside 2 days after your payment received.- We settle for dropshipping order,we can send the products to your customer.- We usually are not chargeable for any VAT or tradition payment or taxes.- SERVICE TRANSIT TIME is supplied by the carrier and excludes weekends and holidays. Transit instances may perhaps vary, particularly in the course of the vacation season.- Please pay extra consideration in your order address which MUST MATCH your shipping address. (If you're from Russia, Please go away your complete name. It is terribly important)- If you prefer different shipping methods, please don't hesitate to contact us, thanks very much. (Please note: it might happen additional charge, such as express)Contact us:- If you want to place a large order for wholesale, please feel free to touch us.- If you need to order multiple items, pleases tell us first. We can give you some discount.- Please be happy to email us or touch by means of aliexpress in case you have any questions on paymentFeedback:- If you're satisfied with our provider or products, please give us 5 stars.- If you have any questions, please contact with us, and we can come back to you sooner. (within 24 hours)