TOGGLE STYLE AIR VALVEModel options:SelectPRODUCT INFOPART# P-16 TYPES WITH DETENT, HOLDS ON BOTH ENDS, CENTER STOPS. WITHOUT DETENT, DOESN’T HOLD ON BOTH ENDS AND SPRINGS BACK TO CENTER WHEN RELEASE THE HANDLE. MATERIAL: ZINC ALLOY WEIGHT: 0.45 KG RETURN & REFUND POLICYIf you need to return any items please contact us at service@gilinkjove.com SHIPPING INFOWe ship worldwide. Please contact us at service@gilinkjove.com for shipping quote and options available.