Item: 13x13 D32 L40 BR Series Aluminium Flexible Coupling Shaft Coupler CNC Stepper Motor d1xd2 : 13x13 mm Outer Diameter:32 mm Length:40 mm Body Material : Aluminum Alloy Pls kindly note: here's 5 pcs/lot. If you would like purchase different size which the goods isn't in our store pls contact us; Special Bre Size And Slot Available On Request. Delivery: The items will be despatched on your address. Please make sure your handle is correct. Feedback: We sincerely provide good merchandise and ideally suited service, so while you are satisfied with us, please depart your positive feedback, customers pleasure and supportive is our greatest return If there's something that you are not satisfied with our item, please let us know so we will assist remedy the problems. Please don't go away a negative feedback. Thank you so much.