Like the title says. They measure 18.5 long and 2.5 I.D. with a 600lb rate. They were slightly used on the rear of a sand car. I will trade for some 3.0 coils 14x350 and/or 16x500. Or sell these for $50.00 firm. I will ship on your dime from Corona, Ca. I will accept Paypal also at [email protected] Dont hesitate to ask questions. Thanks.