Feature Perfect Fitment:Custom Fitted. Suitable for NO. 328.12291-3 Ton - Sears Craftsman Floor Jack.Please confirm whether your model matches it before purchasing. Superior Quality:Constructed from durable and solid rubber material, Antioxidant, wear resistance. All of the components of this kit meet or exceed OEM specifications. What You Get:Our kit covers all of the seals, caps, washers and balls for the complete hydraulic unit. Help you complete the corresponding rebuild work. .