45mm Plastic Joints - Buy 2 packages, get 1 package FREE (36 posts, 36 washers & 36 lock washers total)*The lock washers of these joints must be warmed before use. Place them in a cup of hot to boiling water for a few minutes before you are ready to use them. This softens the lock and allows it to go on and lock securely. These are like our 333-series small shanked joints.