Floating canister delivers four minutes of a dense orange cloud. Help rescuers pinpoint your position during daytime emergencies. Floating canister delivers four minutes of a dense orange cloud. Will not ignite oil on water. Signal Type: Orange smoke Burn Time:Four minutes Deployment Method: Pull cord Type Approval: USCG (daytime), USCG (Daytime) / SOLAS approved Replacement Interval: 42 months from manufacture date How Sold: Individually