Olympic solid rubber bumper weight plates,all in 450mm dia,available in 5kg,10kg,15kg,20kg,25kg or 10lb,15lb,25lb,35lb,45lb,55lb High quality and heavy duty pure rubber bumper weight plates, fit for olympic bars.Both color and black is available.Durable and long lasting.The width of bumper as follow:25kg 98mm20kg 90mm15kg 68mm10kg 55mm 5kg 26mm Olympic bumper plates