Due to being sold elsewhere, there is a possibility of early sell-out. Thank you for your understanding. KATO 24-021 Uni-Clean Oil (Ball Bearing) Condition: New (Unopened) [Description] Uni-Clean Oil exhibits excellent effects in lubrication, penetration, and rust prevention for rotating and sliding parts of models and toys. Also, it does not damage nylon, rubber, plastic, and metals, so you can use it with confidence.