Long pattern length - greater leverage, strength, and access provides stronger grip on fasteners. Surface Drive Plus Reduces fastener rounding - Delivers up to 25% more torque. Size stamped on both sides and on head - Greater visibility to wrench size. Packaged in blow mold tray. Non-Ratcheting24 Piece SAE/Metric Long Pattern Combination Wrench Set includes 1/2" thru 1" and 8 thru 22mm Wrenches packaged in a blow mold tray.