This B&M Universal Button T-handle fits most B&M and aftermarket shifters. Kit includes thread inserts to fit 1/2-20, 3/8-24, 3/8-16 and 5/16-18 SAE. And a 12v momentary switch to activate Line-Lock, transbrake or nitrous. Product Features:Activate Any Line Lock Or TransbrakeActivate Nitrous SystemFits Most Aftermarket SAE ShiftersFits Most B & M Shifters10 Amp And 12 Volt CapacityComes With Wire