Jar of Smoke

The Jar of Smoke is a members-only Old School RuneScape item — “Don't breath in.”. Its Grand Exchange buy limit is 4 per 4 hours. Right now it buys at 111,887 gp and sells at 138,789 gp — a net margin of 24,127 gp (21.6% ROI) after the 2% Grand Exchange tax of 2,775 gp. High alchemy yields 1 gp.

To flip it, place a buy offer near 111,887 gp and a sell offer near 138,789 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.