SFI 3.3 2″ Arm Restraints Per Pair MADE IN THE USA RJS SFI 3.3 certified arm restraints are newly designed restraints that collaborate with RJS 3 in. lap belts and RJS 4-way or 5-way quickrelease harnesses. They feature 1 in. webbing, and a special 1 inch D-ring to prevent slippage making instalation easier. Perfect for use in all types of racing, the restraints come in a variety of colors to match your vehicle or racing suit.